“Invention assistance companies” is a loose phrase. It covers patent attorneys, product design firms, prototyping shops, and marketing and licensing services, and an inventor searching the term gets all four mixed together with no map. The phrase is broad enough that two firms can both claim to do “invention assistance” while delivering completely different work at completely different prices.

Most firms in this category are legitimate. They are patent attorneys, product design firms, prototyping shops, and licensing services that deliver concrete work product for a stated price. A smaller set of operators have given the term a bad name, and the FTC has spent three decades pursuing them. This post sorts the category into its four real groups, explains what each one charges and what each one delivers, names the warning signs that separate a real firm from a bad-faith one, and gives you a practical way to tell which kind of help your project actually needs. The goal is a clear-eyed read of the market, so the money you spend buys concrete work product instead of vague activity.

The Four Real Categories of Invention Assistance

The phrase covers a wide spread of capabilities. Most legitimate “invention assistance” falls into one of four categories.

Patent attorneys and patent agents. Licensed professionals registered with the USPTO who draft, file, and prosecute patent applications. This is the one category whose practitioners are bar-licensed, regulated, and required to maintain malpractice insurance. Patent attorneys handle utility, design, and provisional applications, plus patent prosecution and infringement matters.

Product design firms. Engineering and industrial design firms that take a concept and turn it into a market-ready or license-ready product. They produce photorealistic renderings, CAD files, design-for-manufacturing documentation, and the presentation packages an inventor uses to pitch a brand. The strongest of them work on defined-deliverable contracts and hand back tangible work product an inventor owns.

Prototyping shops. Specialty firms that build physical prototypes from CAD files: 3D printing, CNC machining, soft tooling, electronics assembly. Most operate as pure fabrication services without design or engineering work, though larger shops have begun to offer combined prototyping and engineering services.

Marketing and licensing services. Firms that produce sell sheets, product animation, pitch packages, and brand outreach designed to put an invention in front of potential licensees. Some charge a flat fee per deliverable. Licensing representation itself is often contingency-based, with the firm taking a percentage of a deal only if and when one closes, and no upfront fee for the representation work.

The practical problem is fragmentation. An inventor who hires separately for each of the four categories ends up managing four contracts, four kickoff calls, and four handoffs, with each vendor charging a markup and none of them responsible for how the pieces fit together. Knowing which categories your project needs, and whether one firm can cover several of them, is the first decision worth getting right.

Typical Costs by Category

The numbers below are 2026 industry ranges and not promises. Pricing varies by firm, by complexity, and by what is included.

ServiceTypical CostWhat You Get
Provisional patent application (DIY)$300 to $700USPTO filing fee plus your time
Provisional patent application (attorney-drafted)$1,500 to $4,000Drafted application, filing
Utility patent application (attorney)$7,000 to $20,000Drafted application, USPTO fees, prosecution through issuance
Design patent application (attorney)$1,500 to $4,000Design protection (no utility)
Patent search (professional)$500 to $3,000Prior art search and patentability opinion
Industrial design (concept work)$5,000 to $40,000Sketches, concept renders, CMF
Photorealistic renderings and CAD$15,000 to $80,000Production-ready files, DFM
Physical prototype (situational)$2,000 to $30,000Built only when a partner asks for one
Sell sheet and product animation$1,500 to $8,000Marketing collateral for licensing pitches
Virtual prototype presentation package$5,000 to $25,000Renderings, CAD, animation, sell sheet
Patent broker / licensing agent (commission)25 to 40 percent of dealOutreach, negotiation, deal close
Invention promotion firm (typical)$5,000 to $20,000+ flat“Marketing” services, mixed value

The total budget for a serious inventor taking a product from idea to license-ready package runs $50,000 to $250,000 over 12 to 24 months when the work is bought piece by piece from separate vendors. An integrated firm that covers design, engineering, renderings, animation, and marketing materials under one roof compresses that number, because the inventor pays for the work once instead of paying a markup at every handoff. On the licensing track the license-ready package is virtual, renderings and CAD and optional animation, not a hand-built physical unit. Inventors who under-invest in the design and presentation work can still pitch, but a polished, professional package gives a brand’s product team far more to evaluate.

What the FTC Has Been Saying for 30 Years

The FTC’s “Project Mousetrap” cases against invention promotion firms began in the mid-1990s and continue today. The cases follow a pattern that is worth knowing because it shows you the precise warning signs to watch for.

The bad-faith firms tend to share a sales process. A potential client calls the firm’s 800 number after seeing an infomercial or radio ad. The firm’s intake rep takes a brief description of the invention, then offers a “free initial review.” The free review produces, across every case, a glowing report calling the invention promising and highlighting market opportunity. The next step is a paid “research report” or “market analysis,” in the $300 to $800 range. The market analysis report, no matter what the invention is, recommends a “submission package” or “patent assistance program” priced in the $5,000 to $15,000 range.

The FTC’s findings across multiple cases show, case after case, that these firms close deals with single-digit percentages of clients, that the “market analyses” are template-driven and not invention-specific, and that the “submissions” sent to manufacturers are mass mailings to companies whose published policy says they do not accept unsolicited ideas.

The American Inventors Protection Act of 1999, codified at 35 USC Section 297, requires invention promoters to disclose specific information to inventors before signing them: their total client count, their success rate, the number of clients who received income exceeding what they paid the promoter, and any breach claims filed against them. A firm that refuses to provide this disclosure on request is a firm to walk away from. A firm whose disclosed numbers show a tiny single-digit success rate is a firm whose service offering is not what they advertise.

The Watch-For List

Pull this list out before signing with any firm whose primary service is “invention assistance” or “invention promotion.”

Watch-for 1: Promises of probable success. A firm that tells you your invention has “huge market potential” or “stands a strong chance of being licensed” before they have done meaningful technical work is selling, not assessing. The FTC’s enforcement actions cite this kind of generic promise as deceptive.

Watch-for 2: Vague deliverables. “We will market your invention” or “We will submit to manufacturers” without specifying what the marketing or submission consists of, who receives it, and what response the firm expects, is a yellow flag. Real services have specific deliverables: this prototype, this CAD package, this demo video, this list of named brands.

Watch-for 3: Large upfront fees with contingent value. A firm that wants $10,000 upfront to “find a licensee for you” with no specific guarantees of work product is taking on no risk while the inventor takes on all of it. Reputable licensing services either charge by deliverable (a sell sheet, a demo video, etc.) or work on contingency (taking a percentage if and when a deal closes).

Watch-for 4: Pressure tactics. “This price is available today and never again.” “We have a limited number of slots this quarter.” “Other companies are about to file similar patents.” Time pressure is a sales technique, not a market reality. A real product development engagement does not require closing the contract this afternoon.

Watch-for 5: Refusal to provide AIPA disclosure. Federal law requires invention promoters to disclose their performance numbers. A firm that refuses, or that produces fabricated-looking numbers, is signaling a problem.

Watch-for 6: Promises of “international” or “worldwide” patent protection. No single patent provides worldwide protection. Licensing patents internationally means each country requires a separate filing, separate fees, and separate prosecution. A firm that promises “we will get you patents in every country” without breaking out the per-country costs is misrepresenting what is possible at any reasonable price point.

Watch-for 7: Mass-mailed submission lists. Some firms claim to “submit your invention to manufacturers.” Ask which manufacturers, by name. A list of 200 companies, most of whom have published policy against unsolicited ideas, is a checkbox exercise that produces no real outreach.

How to Verify a Firm Before Signing

Run this verification process on any invention assistance firm you are considering.

Step 1: Pull their AIPA disclosure. The disclosure tells you their client count, deal-close rate, and the number of clients who earned more from licensing than they paid the firm. A reputable firm hands this over without hesitation. Read the actual numbers, not the cover letter.

Step 2: Check their Better Business Bureau record. A pattern of complaints, especially complaints about misleading sales practices, is real signal. One or two complaints on a firm with hundreds of clients is normal. Dozens of complaints with similar themes is not.

Step 3: Check the United Inventors Association. The UIA maintains a list of recommended providers and a list of firms with documented complaints. Their guidance is independent of any specific firm and updates over time.

Step 4: Search court records. PACER and state-court records will show whether the firm has been sued by clients or prosecuted by the FTC, the state attorney general, or another regulator. A clean record on a 20-year-old firm is meaningful. A history of consumer-protection lawsuits is conclusive.

Step 5: Ask for references and call them. Three references whose contact information you can verify on your own. Talk to them about what the firm delivered, how the timeline went, and whether the outcome justified the price. Firms that refuse references should not get your business.

Step 6: Get the deliverables in writing. Whatever the firm is selling, the contract should specify: what you receive, when you receive it, what happens if it is late, what happens if it falls short, and how disputes are resolved. Vague language like “marketing services” or “industry submission” should be replaced with specific named deliverables.

Step 7: Take the contract to an attorney. Two hours of an attorney’s time, $400 to $800, on a contract that may cost you $10,000 or more is the highest-return spend in the entire decision.

If a firm passes all seven steps, you are dealing with a reputable provider. If they fail any one, slow down and reconsider.

What a Reputable Provider Looks Like in Practice

For comparison, here is what a typical engagement with a legitimate provider looks like across the four service categories.

Patent attorney. First call is a fixed-rate consultation, $200 to $500 for an hour. They review your invention, advise on patentability, quote a fixed fee for the application drafting (or time-and-materials with a cap), and provide a written engagement letter with deliverables and milestones. Total drafting and filing takes 4 to 12 weeks for a provisional, longer for a utility. Communication is steady, with copies of all USPTO correspondence forwarded to you.

Product design firm. First conversation is a free or low-cost discovery call (30 to 60 minutes). The firm reviews your concept, asks questions about market and constraints, and follows up with a written proposal that breaks engagement into phases. Knowing when to hire a product design firm helps an inventor scope that conversation, which usually covers concept, refinement, engineering, prototype, and manufacturing handoff. Each phase has fixed-fee pricing or a tight time-and-materials estimate, defined deliverables, and a timeline. A typical full engagement runs $50,000 to $200,000 over six to twelve months.

Prototyping shop. Pure fabrication shops quote from your CAD files. You send the files, they send a quote, you approve, they ship a part. Pricing is per-unit and varies by material and complexity. A 3D-printed prototype might be $200 to $2,000. A machined aluminum prototype might be $500 to $5,000. Shops that also do engineering work bundle the design fee into the project quote.

Marketing and licensing services. Reputable firms here either charge fixed fees per deliverable (one sell sheet, one demo video, one trade show display) or work on contingency for the outreach component. A flat-fee package for prep materials runs $5,000 to $25,000 depending on production quality. Contingency arrangements for outreach take 25 to 40 percent of any deal that closes through their pitch.

What ties these four together is specificity. You know what you are paying for. You know what you receive. You know how long it takes. You know what happens if the firm misses a milestone. The cleanest version of that is a firm that handles several of the four categories at once, with named prices for named deliverables, so an inventor does not spend the project managing four contracts and four handoffs.

Where Enhance Innovations Fits

Enhance Innovations is a product design firm under the four-category breakdown above, working from an office in Champlin, Minnesota, since 2010. The work covers concept development, industrial design, CAD and mechanical engineering, photorealistic renderings, product animation, prototyping coordination, manufacturing sourcing, and the marketing materials that support an inventor’s pitch to a brand. Patent drafting stays with a patent attorney, but the rest of that list sits under one roof rather than split across four separate freelancers.

The structure matters because it covers two of the four categories above, the product design firm and the marketing and licensing service, with one accountable team. Design packages carry a fixed price for a defined deliverable. Licensing representation works the other way: it is contingency-based with no upfront fee, so the representation cost only applies if a deal closes. An inventor who wants the engineering, renderings, and presentation work that turns a concept into something a brand will give a serious look at, plus the option of contingency-based licensing representation behind it, can get both from the same firm. That is the slot Enhance fills.

A Realistic Inventor Budget

Most inventors who get to a closed licensing deal have spent something like the following over 18 to 30 months.

ItemTypical Spend
Patent search (professional)$399 to $2,500
Provisional patent (attorney)$1,499 to $4,000
Industrial design and renderings$10,000 to $40,000
CAD and mechanical engineering$25,000 to $70,000
Product animation and sell sheet$2,000 to $10,000
Physical prototype, if a partner asks for one$2,000 to $25,000
Trade show or licensing outreach$5,000 to $15,000
Utility patent (attorney, through issuance)$10,000 to $20,000
Patent attorney for license review$3,000 to $8,000
Total$59,000 to $194,500

That range is a real picture of what serious invention work costs across separate vendors. It also shows where the fragmentation tax lives. An inventor who buys the design, renderings, animation, and sell sheet from one integrated firm pays for the work once, not for four kickoff calls and four markups. On the licensing track, the core deliverable is a virtual prototype, renderings plus CAD plus optional animation, and a physical prototype is a situational add-on rather than a required line item. Enhance Innovations packages that virtual prototype work at fixed prices, from Sapphire Lite at $4,000 to $4,500 up to Platinum at about $9,500, with the $399 patent search as the first step. Inventors who skip the engineering and renderings altogether can still close a deal on occasion, but the pitch lands softer and the terms tend to follow.

Frequently Asked Questions

Q: How do I tell the difference between a patent attorney and a patent agent?
A: Both are registered with the USPTO and can prosecute patent applications. A patent attorney also has a law degree and can represent you in patent litigation. A patent agent cannot. For application drafting and prosecution alone, agents and attorneys do similar work at similar rates. For potential litigation or licensing-contract matters, you want an attorney.

Q: Are all “invention assistance companies” scams?
A: No. The category includes legitimate patent attorneys, product design firms, prototyping shops, and licensing services. The bad-faith operators tend to advertise on late-night TV and radio with promises of easy success and require large upfront fees for vague services. Reputable providers operate without fanfare, charge for specific deliverables, and produce work product you can hold in your hand.

Q: What is the AIPA disclosure?
A: The American Inventors Protection Act of 1999, codified at 35 USC Section 297, requires invention promoters to disclose performance information to potential clients. The disclosure must include the total client count, the number of clients who licensed their inventions, the number who earned net income exceeding what they paid the promoter, and certain other facts. Reputable promoters provide it on request. Firms that refuse are signaling a problem.

Q: Can I do parts of this myself to save money?
A: The early documentation belongs to you no matter what. Writing up how the invention works, sketching it, talking to potential customers, and reading the market are an inventor’s own job and cost nothing but time. The technical and presentation work is where amateur effort tends to cost more than it saves. A self-built rendering or a phone-camera sell sheet reads as amateur to a brand’s product team, and a CAD file with tolerance problems gets quoted with a stack of follow-up questions. The components most worth paying for are patent prosecution (the legal stakes are high) and production-quality engineering and renderings (the presentation and manufacturing stakes are high). A practical sequence is to start with a professional patent search, which costs $399 at Enhance Innovations, then decide how much of the design and licensing work to hand over once you know the prior-art field is clear.

Q: How long has Enhance Innovations been doing this kind of work?
A: Since 2010. The Champlin, Minnesota firm has supported inventors and product brands across consumer products, household goods, and tools for more than 15 years, covering industrial design, CAD and engineering, renderings, prototyping coordination, and licensing presentation work.

Q: What red flags should I watch for in any invention assistance contract?
A: Vague deliverables, large upfront fees, promises of probable success, refusal to provide AIPA disclosure, pressure to sign without time for review, claims of worldwide patent protection at low cost, and refusal to provide verifiable references. Any single one of these warrants slowing down. Two or more together warrant walking away.