What does an invention development company actually charge?
Most invention development companies do not quote one number up front. They sell packages, and the packages grow.
A typical entry point is a free evaluation, followed by a paid research or "marketability" report. In cases the FTC has brought, that first report cost $995 at one firm (FTC, 1997) and up to $1,295 at another (FTC complaint against World Patent Marketing, 2017), and a federal court found a third firm's report cost under $800 (court findings in FTC v. Davison Associates, 2006). The FTC says these reports are often "mass-produced and designed to sell you more services" (FTC consumer guidance). Under federal law, a promoter must also tell you how many of its clients made a net profit, so ask for that in writing before you pay.
Once you pay for that first report, you get a call about the next tier: licensing packages, promotion to manufacturers, or "invention marketing" services. The FTC and the USPTO have warned that these advance fees "can range from $5,000 to $10,000" (FTC and USPTO, 2003). In the Davison case, the court found the firm charged $8,000 to $14,000 for its representation packages (2006 findings), and the FTC's complaint against World Patent Marketing describes packages priced from $7,995 to $64,995 (FTC complaint, 2017).
Losses past $20,000 are documented too. News coverage of the World Patent Marketing case reported a customer who paid $20,000 and another who paid $380,000 (NBC 6 Miami). In 2018 the firm and its owner agreed to a judgment of nearly $26 million, most of it suspended, and a permanent ban from the invention promotion business (FTC, 2018). The Federal Trade Commission has brought actions like these against firms in this space for decades, over the same pattern: a cheap or free first step that funnels into expensive services with little evidence they ever worked.
The core issue is not that every company in this category is dishonest. It is that the pricing structure is built to extract payment regardless of outcome, and the service rarely includes anything close to a real patent search, a cost estimate for prototyping, or a grounded read on whether the market wants the thing at all.
Why do these companies rarely mention prior art?
Prior art is the existing body of patents, products, and public disclosures that already cover an idea, in whole or in part. It is the term a patent attorney uses when checking whether something similar already exists. A real prior art check means searching patent databases and other public sources, not just asking "has anyone heard of this."
Many invention development companies skip this step entirely, or they run a shallow keyword search and call it a "patentability report." That is a problem, because prior art is one factor that tends to matter most in deciding whether an idea is worth developing further. Without it, you are paying for encouragement, not information.
If you want to understand how a more rigorous search actually works, including which databases get checked, EntreDash's methodology lays out the process. There is also a dedicated breakdown of affordable ways to run an international prior art search if your idea has reach beyond one country.
What are the warning signs of a problematic invention development company?
A few patterns show up again and again in FTC complaints and consumer reports about this industry:
- A guaranteed positive evaluation. If every idea that comes through the door gets called "marketable" or "patent pending material," the evaluation is not evaluating anything.
- Pressure to decide fast. Phrases like "this window closes soon" or "someone else is already working on something similar" are pressure tactics, not facts about your idea.
- Vague claims about contacting manufacturers or investors. Ask for names, dates, and documented outcomes. A real submission process leaves a paper trail.
- Payment tiers that keep growing. Each new fee is framed as the thing that finally gets your invention "in front of the right people."
- No mention of a patent attorney. A company that never recommends independent legal counsel, and instead positions itself as the only path forward, is skipping a step a legitimate process would include.
None of this means an idea submitted to one of these firms is doomed, or that paying for help is inherently a mistake. It means the fee should buy something concrete: a documented search, a cost estimate, a drawing, a model, not just enthusiasm.
How much does it cost to develop an invention the right way?
The honest answer depends on how far you want to take the idea before talking to an attorney or a manufacturer, and which path you choose to get there.
There are really three paths: hire it out piece by piece (a patent search firm, a sketch artist, a prototype shop), do it yourself with design software and free search tools, or use a structured service built for this exact stage. Each path has a different cost profile and a different time cost, and the right choice depends on your budget, your deadline, and how comfortable you are doing technical research yourself.
For a sourced, item-by-item comparison of what each path actually costs, start with the cost to develop an invention guide. It breaks down pricing for prior art searches, concept drawings, 3D models, and business case work across all three paths, so you can see where a $10,000 invention development company fee would otherwise go if spent piece by piece.
What should a legitimate evaluation actually include?
A useful early-stage evaluation of an idea should give you something you can act on, not just a verdict of "good" or "bad." At minimum, look for:
- A documented prior art search, with specific patents or products cited, not a general statement that "nothing like this exists."
- A market read that considers who would actually buy the thing and why, grounded in comparable products or demand signals, not just enthusiasm about the idea.
- Some sense of the cost and complexity of building a working version, even a rough one.
- A clear-eyed note on which parts of the idea might be defensible and which parts are likely common ground, with appropriate caveats. Nobody should tell you an idea definitely is or is not patentable from a short evaluation. That is the kind of question a patent attorney answers after a full search, not something an intake call can settle.
This is the structure EntreDash's own process follows: an idea goes to three named advisors, a Product Strategist, an IP Consultant, and a Financial Analyst, each looking at a different piece of the question. You can see the full flow on the how it works page, or run your own idea through the first pass for free on the EntreDash homepage.
How do I know if I need a prototype before I talk to anyone?
Not always, and definitely not immediately. Many invention development companies push prototyping or 3D rendering services early, before anyone has checked whether the idea overlaps with something that already exists or whether there is a real market for it.
The more sequenced approach is to validate the concept and check prior art first, then move to a concept drawing or 3D model once the idea has held up. If you are at that stage, getting a numbered concept sketch or an early 3D concept model are reasonable next steps, each far cheaper than a full prototype build. The step-by-step guide to developing an invention idea walks through the order these pieces should happen in, from early idea to attorney-ready.
How much time does this whole process realistically take?
Timelines vary widely depending on how complex the idea is and which path you take, but it is rarely fast. A detailed look at how the stages add up, from initial validation through something ready to show an attorney or manufacturer, is covered in how long it takes to develop an invention. Knowing the realistic timeline up front is useful specifically because it is the opposite of what high-pressure sales calls want you to believe. There is almost never a reason to decide in one phone call.
What is the actual cost of skipping this groundwork?
The real cost of paying an invention development company $10,000 or more without a documented prior art search or market check is not just the money. It is the time spent moving forward on an idea that might have overlapped with existing patents or products from the start, something a search would have surfaced early and cheaply.
Checking an idea properly before spending heavily on development or promotion is not an extra step. It is the step that determines whether everything after it is worth doing. A free first pass through a structured process, with named advisors looking at the market angle, the IP angle, and the financial angle, costs nothing and takes a fraction of the time a sales call would ask for.
Sources
- Federal Trade Commission, Invention Marketing Scams (consumer guidance)
- Federal Trade Commission and USPTO, Invention Promotion Firms (2003)
- Federal Trade Commission, New Jersey invention promotion firm subject to preliminary order (1997)
- FTC v. Davison Associates, findings of fact and conclusions of law (W.D. Pa., 2006)
- FTC v. World Patent Marketing, complaint (S.D. Fla., 2017)
- Federal Trade Commission, Settlement will ban fraudulent marketers from invention promotion business (2018)
- NBC 6 Miami, Feds call Miami Beach patent operation a scam (2017)
- USPTO, Invention promoter and promotion firm complaints
