Rejected patents usually trace back to four grounds: the invention is not eligible subject matter, is not new, is obvious from earlier work, or is not described clearly enough. Patrick Stanzione, a former supervisory USPTO patent examiner, explains what each ground means. A prior art search and a complete description lower the risk before filing, with no guarantee.
Rejected patents are common at the first stage of examination, and every rejection arrives with a stated reason. Patrick Stanzione spent part of his career as a supervisory patent examiner at the USPTO, so those reasons are familiar ground at Stanzione & Associates.
A patent attorney reads each rejection against the claims and the description to find what can be fixed. The same reading, done before filing, shows where most rejections begin.
What Rejected Patents Actually Are
A rejection is a written finding by the examiner that one or more claims, as drafted, fail a requirement of patent law. It arrives in an Office Action and explains the reasoning claim by claim. Read the full text, including every cited reference, to see exactly what the examiner relied on.
A rejection is not a denial of the invention, and it does not end the application. Applicants can amend the claims, argue the examiner’s reading of the earlier references, or do both. Responding is a subject of its own, and the focus here is the reasons behind the finding.
Rejections and objections are different. A rejection concerns whether the claimed invention qualifies for a patent. An objection concerns form, such as a drawing that omits a claimed feature or a term used inconsistently in the description.
How Many Patents Get Rejected?
No single figure answers how many patents get rejected, because the count changes with the question. A first-action rejection, a final rejection and an abandoned application are three different events, and each produces a different percentage.
The pattern holds across technology areas: a first Office Action that allows every claim is the exception. The USPTO publishes allowance and pendency data, and outside analysts publish their own, so check the current source before quoting a number to a board or an investor. Treat any statistic as a snapshot of one slice of filings, not a forecast for a specific application.
The more useful question for a business is which of its own filings will draw a rejection, and why. Software and business-method filings often meet eligibility findings that other fields rarely see. Crowded fields draw more prior art citations, because more earlier work exists to cite.
The Four Grounds Behind Most Rejected Patents
Four statutory grounds account for most substantive rejections. Each one tests a different part of the application, so each calls for a different fix.
Eligible Subject Matter
Section 101 limits patents to a process, machine, manufacture or composition of matter. It excludes abstract ideas, laws of nature and natural phenomena. Software claims draw this finding most often, because a claim that reads as a business rule or a mathematical relationship looks abstract on its face.
The fix starts in the drafting. Tie the claims to a specific technical improvement, such as how a system processes data or controls a device, and describe that improvement in the specification. The same principle applies to patenting an app, where the technical mechanism carries more weight than the idea.
Novelty
Section 102 asks whether a single earlier reference, such as a patent, a publication or a product disclosure, shows every element of the claim. If one does, the claim lacks novelty.
A novelty rejection often reflects claims written too broadly. A claim wide enough to cover what already exists will be cited against. Claims layered from broad to narrow give the application several positions, so one citation does not remove everything.
Obviousness
Section 103 applies when no single reference shows every element, but a combination of earlier references would have made the claim an obvious step to a person of ordinary skill in the field. It is the most flexible ground, because an examiner can assemble the argument from several documents.
The answer lies in the description. Explain the problem the earlier work left open and why the claimed combination solves it in a way the references do not. A description that records those technical reasons gives the applicant something concrete to point to later.
Disclosure and Claim Clarity
Section 112 covers three requirements: a written description showing the inventor possessed the claimed invention, enablement that lets a skilled reader make and use it, and claims that are definite. A claim term the description never defines, or a feature claimed but never described, invites this rejection.
Thin disclosure also limits later options. New matter cannot be added to an application after it is filed, so a detail left out of the original description is hard to recover.
Application Problems Examiners Notice Quickly
Beyond the four grounds, examiners notice drafting defects during the first pass through an application. Most are avoidable.
- Claims broader than the description supports.
- Terms in the claims that the description never defines.
- Drawings that omit a claimed feature or number the parts inconsistently.
- Shifting terminology, such as “module” in one section and “unit” in another.
- Overlap with another application by the same inventor, which can draw a double patenting rejection.
Each of these costs time during examination, even when none ends in a refusal. Cleaning them up before filing keeps the examiner’s attention on the invention itself.
What a Former Supervisory Examiner Sees Differently
Examiners work under time limits for each application, and they read the claims first. The claims set the scope of the search and the scope of every rejection that follows, so unclear claims lead to broader searches and broader citations.
A rejection also reflects how the examiner read the claims. The same claim can draw different findings depending on how its terms are defined in the description.
Patrick Stanzione brings that examiner’s-side view to every application at Stanzione & Associates. Over 30 years of practice, and several thousand granted patents that list him as attorney of record, shape how claims and descriptions are drafted from the first page.
That experience improves preparation, not odds. No firm can promise that an application avoids rejection, and any firm that does is promising more than the process allows.
Why Rejected Patents Matter More For Businesses That File Regularly
A single rejection costs time and legal fees, and a pattern of rejections across a portfolio costs more. Companies that file often, such as product teams releasing new versions or startups building a patent position before a funding round, feel the cumulative effect.
Prosecution also leaves a record. Amendments and arguments made to overcome a rejection become part of the public file history, and they can limit how the claims are read later. A first draft that needs fewer amendments leaves a cleaner record for licensing, enforcement and investor review.
How To Reduce The Risk Of Rejected Patents Before Filing
Preparation removes most avoidable rejections. Work through these steps before every filing.
- Run a prior art search before drafting, so the claims start from what already exists.
- Draft claims in layers, from broad to narrow, so each layer has support in the description.
- Define every claim term in the description and keep the terminology consistent.
- Describe each embodiment, including alternatives, with enough detail for a skilled reader to build it.
- Check that the drawings show every claimed feature.
- Review related applications for overlap before filing.
Businesses that innovate continuously gain the most by treating these steps as a routine rather than a one-time task. The routine applies to every filing, from utility patents on new products to later improvements, and consistent drafting gives each application the same clear structure.
For a broader view of what each filing type protects, see the overview of the types of patents.
Frequently Asked Questions
Are software patents rejected more often than other inventions?
Software and business-method claims face an extra hurdle, because the eligibility test under Section 101 screens out abstract ideas. Mechanical and electrical inventions meet that test less often, but prior art rejections can reach any field, so careful claim drafting matters outside software too. Before filing a software invention, list the technical steps the system performs and confirm that each one appears in both the claims and the description.
Does a prior art search prevent rejected patents?
A search does not prevent a rejection, because the examiner runs an independent search and may find different references. It does let the claims be drafted around the closest known work, and it sets realistic expectations before money goes into filing. Treat the results as a map of the field rather than a clearance, since no search finds every reference.
Can a rejection affect a company’s later patent filings?
A rejection in one application does not count against the applicant in other filings. What does carry forward is the written record of that application, so a statement made to overcome one rejection stays on file for anyone to read. Choose arguments carefully, and keep related applications consistent so one file history does not undercut the next.
When should a business bring in a patent attorney?
Bring in a patent attorney before drafting, not after the first rejection. Claim scope, the description and the search all shape what an examiner finds, and each is easiest to fix before filing. Businesses with a steady stream of inventions also benefit from one team applying the same drafting standards across every application in the portfolio.
Before the next filing, ask a patent attorney at Stanzione & Associates, PLLC to read the claims as an examiner will, and call now for your free 15 minute consult at (202) 349-1124.
