Six myths that cost inventors money
Patent pending does not protect you, no worldwide patent exists, a mailed envelope is worthless, and a firm that promises too much is a warning sign.
Lesson 8 of 8 · 3 min
Myth 1: "Patent pending" protects me
A provisional application, the simpler filing that is not examined, only "allows the term" Patent Pending (USPTO). The label gives notice of a filing. It is not a patent. Using it falsely to deceive carries a fine of "not more than $500 for every such offense" (35 U.S.C. § 292).
Myth 2: I can get a worldwide patent
WIPO, the UN's intellectual property agency, is direct: "At present, you cannot obtain a universal 'world patent' or 'international patent'" (WIPO FAQ). US rights "have no effect in a foreign country" (USPTO).
Myth 3: Mailing it to myself proves my rights
A "poor man's patent," a description mailed to yourself in a sealed envelope, gives no filing date. One law firm calls it "largely a myth," even under the older first-to-invent system (McLane Middleton).
Myth 4: This company will make me rich
The USPTO warns of promoters who promise "too much," and it says it "does not investigate complaints" (USPTO scam prevention). So do your own checking.
Federal law requires invention promoters to give written disclosures before a contract, including a track record over 5 years and affiliations over 10. Remedies are damages of up to $5,000 or actual damages, with a trebling option for intentional misrepresentation (35 U.S.C. § 297). For a real example, read this report on the FTC's World Patent Marketing settlement.
Myth 5: A patent lets me sell my product
"What is granted is not the right to make, use, offer for sale, sell or import the invention" (USPTO). A patent lets you stop others. Your product can still fall under someone else's rights, as an earlier lesson explains.
Myth 6: The US grace period protects me abroad
The US excepts an inventor's own disclosures made one year or less before the effective filing date (35 U.S.C. § 102). Other systems differ. The European Patent Convention forgives only narrow cases such as evident abuse or a recognized exhibition (EPC Art. 55). So telling the public first can cost you rights in Europe even when your US position survives.
Timeless wisdom
Rights come from a filed application and a granted patent, in the country that grants it. They do not come from a label, an envelope or a promise. That is why WIPO's rule of thumb is still the right default: "avoid any disclosure of an invention that might affect its patentability until the patent application has been filed" (Inventing the Future). In our judgment, the same skepticism applies to anyone selling certainty. An honest adviser describes risks, and the USPTO's warning about promoters who promise "too much" is a good test to apply.
What's current
As of November 6, 2026
Claiming a fee discount you do not qualify for has real consequences. In October 2024, the USPTO terminated about 3,100 applications over a fraudulent practitioner signature linked to many micro-entity certifications. Micro-entity status is a reduced-fee category with a gross income limit. In our judgment, you should confirm that you qualify yourself, even when a filing service offers to handle the certification for you.
Key takeaways
- Patent pending is a label, not protection.
- No worldwide patent exists, and US rights stop at the US border.
- A mailed envelope gives you no filing date.
- Be wary of any promoter who promises too much, and check the disclosures the law requires.
Check your understanding
Sources
- USPTO, Provisional application for patent
- 35 U.S.C. § 292
- WIPO, Patents FAQ
- USPTO Patent Essentials
- McLane Middleton commentary
- USPTO scam prevention
- 35 U.S.C. § 297
- Legal Newsline, FTC settlement with World Patent Marketing
- 35 U.S.C. § 102
- European Patent Convention, Art. 55
- WIPO, Inventing the Future
- USPTO, termination of proceedings over fraudulent signature (2024)
- USPTO, Micro entity status
The Academy is general education, not legal advice, and reading it doesn't create an attorney-client relationship. Patent law and fees change, so check the linked sources and have a registered patent attorney or agent review your situation before you file. Obsidyan sells patent software, including AI drafting tools, so weigh what these lessons say about AI tools with that in mind.