AI Patent Eligibility: 5 Essential Rules for 2026
Reciting a neural network won't save a claim. Here is how the USPTO decides AI patent eligibility under Section 101 in 2026 — and how to draft claims that survive.
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IP Insights & Resources
Expert perspectives on intellectual property strategy, patent law, trademark protection, and IP portfolio management from the PerspireIP team.
Patent Cross-Licensing: 7 Smart Rules to Win in 2026
Patent cross-licensing lets two companies trade access to each other's patents instead of suing. Here is when it makes sense, where antitrust draws the line, and the clauses that decide who really wins.
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Patent Invalidity Opinion: 6 Essential Elements to Demand
A patent invalidity opinion is the reasoned legal analysis that tells an accused infringer or IPR petitioner whether a patent will survive a challenge. Here is what belongs in one.
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Unity of Invention: 5 Essential Rules for PCT and EPO
Unity of invention decides whether one application can cover several inventions. Learn the single-inventive-concept test and how the PCT, EPO, and USPTO differ.
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Provisional Patent Application Drawings: 6 Smart Rules
Do provisional patent application drawings have to be formal? A practical guide to informal sketches, the 35 U.S.C. 113 rule, and the new-matter trap.
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PattsyWave Alternative: 7 Smart Ways to Choose
PATTSY WAVE is a capable docketing platform, but it isn't the only way to keep patent and trademark deadlines. Here's how to compare the real alternatives without betting the portfolio.
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European Patent Drafting: 7 Rules to Win at the EPO
A US-style application filed at the EPO without reworking rarely survives examination. Here are the seven rules that separate a European patent that grants from one that stalls.
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Inkscape for Patent Drawings: 7 Steps to Compliance
A practical, step-by-step tutorial for producing USPTO-ready figures in the free vector editor Inkscape — and an honest look at where do-it-yourself drawings still fall short.
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IP Portfolio Assessment: 6 Proven Steps to Cut Costs
How to run an IP portfolio assessment that survives scrutiny: the fee math that forces the decision, a scoring rubric, and what happens when you let a patent go.
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IP Management System: 7 Essential Features to Demand
A vendor-neutral guide to choosing an IP management system: the seven features that actually matter, what it really costs, and where rollouts fail.
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Shop Rights: 6 Essential Rules on Employee Inventions
A practical guide to shop rights: the employer's implied, royalty-free license to an employee invention, how it arises, and why it is a poor substitute for an assignment.
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Bolar Safe Harbor: 6 Essential Rules Under 35 USC 271(e)(1)
A practical guide to the Bolar safe harbor under 35 USC 271(e)(1): what it protects, how far reasonably related reaches, and where the exemption runs out.
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Joint Ownership of Patents: 6 Essential Rules for 2026
A co-owner holding one percent of your patent has the same rights you do — including the right to license your competitor and keep the money. Here is what Section 262 really says.
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Patent Exhaustion: 5 Critical Rules After Lexmark
Sell a patented product once, and your patent rights in that unit are gone — no matter what the label says. Here is what the Supreme Court actually held, and how to structure around it.
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TTAB Opposition: 6 Critical Steps to Defend Your Mark
A notice of opposition is not a lawsuit, but it can end your registration just as effectively. Here is how the proceeding actually runs.
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Non-Patent Literature Search: 7 Expert Steps That Win
Most invalidity fights are won with evidence that never appears in a patent database. Here is how to find it, date it, and make it stick.
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Certificate of Correction: 5 Smart Rules to Fix a Patent
A typo in an issued patent can quietly weaken a claim or break a priority chain. A certificate of correction is the low-cost fix — but only for the right kind of error, and only going forward. Here is what it can repair, what it cannot, the litigation trap that surprises owners, and five rules for using it well.
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Markush Claims: 6 Smart Rules for Drafting Alternatives
One claim can protect a whole family of alternatives — if you draft it the way the USPTO expects. This guide walks through the Markush format, the improper-grouping rejection that trips up chemical and biotech applications, election of species, and six practical rules for getting alternatives allowed.
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Provisional Patent Deadline: 5 Essential Rules for 2026
The provisional patent deadline gives you 12 non-extendable months. Here's how the clock works, how to claim benefit, and how to restore priority if you slip.
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Trademark Due Diligence: 7 Smart Checks Before You Buy
A buyer-side trademark due diligence checklist: how to verify chain of title, live status, renewals, licenses, and conflicts before you close on a brand.
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