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Patent

What a patent actually protects, when a product founder needs one, and how to search and file before someone else gets there first.

Updated March 21, 2026

A patent grants the inventor exclusive rights to make, use, and sell an invention for a fixed period: 20 years for utility patents, 15 years for design patents. In exchange, you disclose exactly how the invention works. That disclosure is the deal. The government gives you a temporary monopoly; you give the public the knowledge. When the patent expires, anyone can use it.

Most product brand founders need a trademark before they need a patent. Trademarks protect brand equity, which is usually what customers buy into. Patents protect inventions, which matters when your competitive advantage is something you invented rather than something you branded. If your formula, mechanism, or packaging design is genuinely novel and a competitor could replicate it and undercut you, a patent is worth taking seriously. If your edge is the brand, protect the brand first.

What You Can Patent

Utility patents

Utility patents protect how something works: a formula, a process, a mechanism, a chemical composition. If you’ve developed a skincare formulation that works through a novel delivery mechanism, or a manufacturing process that produces results competitors can’t replicate, that’s utility patent territory. The bar is high: the invention must be novel (not previously known or used), non-obvious (not something any skilled person in the field would naturally arrive at), and useful.

Design patents

Design patents protect how something looks, not how it works. For product brands, this is often more immediately relevant than a utility patent: the shape of a bottle, the configuration of a compact, the specific silhouette of a shoe. Filing fees for a small entity run $520 through issuance, and they last 15 years with no maintenance fees. If the visual identity of your physical product is part of what customers pay for, a design patent is worth understanding.

The distinction matters. A moisturizer formula is a utility patent. The bottle it comes in is a design patent. You can hold both.

What you cannot patent

Abstract ideas, laws of nature, and natural phenomena aren’t patentable. A business method on its own isn’t patentable. A recipe for food isn’t patentable the way a patented drug formulation is, because the ingredients are natural compounds. And critically: you cannot patent something that’s already been publicly disclosed. If you’ve published, presented, or sold an invention before filing, you’ve started a clock. In the US, you have 12 months from public disclosure to file. In most other countries, there’s no grace period at all.

Patent vs. Trade Secret

Before you file anything, consider whether you actually want to. A patent requires you to disclose exactly how your invention works. Once it’s filed, it’s public record. Once it expires, it’s fair game for everyone.

A trade secret, kept confidential, can last indefinitely. Coca-Cola has never patented its formula. The formula is over 130 years old. Had they patented it in 1893, competitors could have copied it legally since 1913. The choice to keep it secret instead turned a single formula into a permanent competitive advantage.

Trade secret protection requires you to actively keep it secret: confidentiality agreements with employees and suppliers, access controls, documented internal policies. If the secret leaks through your own negligence, you lose the protection. But if you can keep it, there’s no expiration date.

The tradeoff: a patent blocks competitors even if they invent the same thing independently. A trade secret doesn’t. If a competitor develops the same formula on their own, they can use it freely, because they didn’t steal it from you.

How to Search for Prior Art

Before investing in a patent application, search for prior art: anything publicly known, used, or patented before your invention that could invalidate what you’d file. Discovering a blocking patent after you’ve built your product and manufacturing process is far more expensive than finding it first.

Google Patents is the fastest place to start.

  1. Go to Google Patents.
  2. Search your invention using descriptive terms, not brand names. You’re looking for what the invention does, not what you’d call it. “Anhydrous serum applicator” or “cosmetic compact hinge mechanism” rather than your product name.
  3. Filter by Status: Active. Expired patents can’t block you. Active ones can. This filter cuts out decades of irrelevant results.
  4. Open anything that looks close and go straight to the Claims section. The claims are what’s legally protected. The description explains how it works; the claims define the legal boundaries. A patent with broad claims on a mechanism similar to yours is a problem even if the product looks different.
  5. Note the expiration date. A utility patent filed in 2004 expires in 2024. If it’s expired, the invention is in the public domain and you can use it freely.
  6. If you find something close, read the independent claims carefully. Independent claims stand alone. Dependent claims build on them. If your invention avoids every element of an independent claim, you’re likely outside its scope.

For a more thorough search, the USPTO Patent Full-Text Database searches the complete text of every US patent, including older ones that may not appear in Google Patents. It’s more powerful and harder to use. A professional prior art search from a patent attorney or search firm runs $1,500 to $4,000 and is worth it before committing to a full application.

Provisional vs. Non-Provisional

A provisional patent application is a cheaper, faster first step that does one important thing: it locks in your priority date. Priority date is everything in patent law. If two inventors file for the same invention, the one who filed first wins, regardless of who invented it first.

A provisional costs $130 for a small entity (under 500 employees) or $65 for a micro entity. It doesn’t get examined, doesn’t become a patent on its own, and expires after 12 months. But it earns you “patent pending” status immediately and gives you a year to raise money, test the market, or decide whether a full application makes sense. If you don’t file a non-provisional within 12 months, the provisional expires and you lose the priority date.

A non-provisional application is the real filing. It gets examined, can become a patent, and costs $1,316 in USPTO fees for a small entity through issuance, plus attorney fees of $5,000 to $15,000 depending on complexity.

For most founders, the smart move is: file a provisional to lock your date, then decide within 12 months whether the invention is worth the full investment.

How to File a Provisional Patent Application

Filing a provisional yourself is legal and sometimes reasonable for a simple invention. Sara Blakely drafted her own provisional before paying an attorney $750 to finalize it. The result was U.S. Patent No. 6,276,176, which protected the core Spanx design.

  1. Go to Patent Center. This is USPTO’s current filing system.
  2. Create a MyUSPTO account if you don’t have one. It’s free and required to file.
  3. Start a new application. Select “Provisional” as the application type.
  4. Write a specification. This is a written description of your invention: what it is, how it works, and how to make and use it. It doesn’t need formal patent claims, but it needs to describe the invention completely enough that someone skilled in the field could reproduce it. This is the hard part. Vague descriptions give you weak protection.
  5. Include drawings if relevant. Not required for provisionals, but a clear drawing of a product or mechanism helps establish what you’re claiming.
  6. Upload your documents. Files submitted in DOCX format avoid a $172 surcharge (for small entities) that applies to PDFs and other formats.
  7. Pay the filing fee. $130 for small entity, $65 for micro entity. You can verify your entity status on the USPTO fee schedule.
  8. Save your filing receipt. It contains your application number and official filing date, which is your priority date.

If your invention is complex, involves software, or has chemistry/biology claims, hire a patent attorney to write the specification. A poorly written provisional can fail to support your later non-provisional, costing you the priority date you paid for.

What Patents Actually Cost

Provisional application: $130 (small entity) or $65 (micro entity) in USPTO fees. If you draft it yourself, that’s the total. If an attorney drafts it, add $1,500 to $3,000.

Non-provisional utility patent (small entity):

  • USPTO fees through issuance: $1,316
  • Attorney fees to draft and prosecute: $5,000 to $15,000
  • Total out of pocket: $8,000 to $15,000 for a simple mechanical invention
  • Complex software or chemistry patents: $15,000 to $45,000

Design patent (small entity):

  • USPTO fees through issuance: $520
  • Attorney fees: $1,500 to $3,000
  • Total: $2,000 to $4,000

Maintenance fees (utility patents only):

  • At 3.5 years: $860
  • At 7.5 years: $1,616
  • At 11.5 years: $3,312
  • Total maintenance over the patent’s life: $5,788 (small entity)

Track 1 prioritized examination: An additional $1,806 (small entity) gets you a final decision in roughly 12 months instead of 26+. Worth considering if speed to market or investor conversations depend on patent status.

After You File

The USPTO assigns your application to a patent examiner, who reviews it against existing patents and published material. Over 92% of utility patent applications receive at least one rejection before being approved or abandoned. A rejection isn’t the end: it’s the start of a negotiation. You can amend claims, argue the examiner’s reasoning, or narrow the scope of what you’re claiming.

Average examination time from filing is 26 months. Request for continued examination after a rejection stretches the average to 44 months. Track 1 cuts this to roughly 12 months.

Once approved, you receive a Notice of Allowance and pay the issue fee. The patent is then published and the clock starts on your maintenance deadlines.

Frequently Asked Questions

Do I need a patent or a trademark?

Most product founders need a trademark first. A trademark protects your brand name, logo, and visual identity, which is what customers recognize and what competitors imitate most often. A patent protects a specific invention. If your competitive advantage is brand equity rather than a novel invention, register the trademark first. If your product works through a mechanism no one else has, and a competitor could replicate it and undercut you, look at patents too. They’re not mutually exclusive.

Can I use “patent pending” before my application is approved?

Yes, once you have a filed provisional or non-provisional application with the USPTO. It means you’ve filed, not that the USPTO has reviewed or approved anything. You cannot use “patent pending” without an active application. Doing so is a federal offense with fines up to $500 per instance. Once the patent is granted, switch to “patented” or list the patent number on the product.

What’s the difference between a utility and design patent?

A utility patent protects how something works. A design patent protects how it looks. A bottle’s formulation is a utility patent. The bottle’s shape is a design patent. Design patents are faster, cheaper, and have no maintenance fees. For product brands where the look of the physical product is a core asset, design patents are often more practical than utility patents.

If someone patents the same thing independently, does my patent protect me?

Yes. That’s one of the key differences between patents and trade secrets. A patent is a public right. If you hold a valid patent and a competitor independently invents the same thing, they’re still infringing if they make, use, or sell it without your permission. “I didn’t steal it” is not a defense to patent infringement. Independent invention is irrelevant.

How do I know if my product infringes someone else’s patent?

Search Google Patents and the USPTO Patent Full-Text Database for patents covering your product’s category. Read the claims of anything that looks close. If a patent’s independent claims cover elements of your product, you could be infringing even if your product looks different or you developed it independently. If you find something potentially blocking, a patent attorney can give you a freedom-to-operate opinion for $3,000 to $10,000, which formally assesses infringement risk. This is worth doing before you scale production.

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