Continuation vs Divisional Application: 6 Essential Rules
A continuation and a divisional share the same parent disclosure but claim different things. Here is how to tell them apart and file the right one.
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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.
Design Patent Infringement: 5 Proven Ways to Win
Proving design patent infringement turns on one deceptively simple question — and on damages rules that can reach an infringer's entire profit. Here is how it works.
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Design Patent Obviousness: 5 Essential Post-LKQ Rules
The Federal Circuit's LKQ v. GM decision rewrote design patent obviousness. Here is how the new test works and what it means for your portfolio.
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Inventor Oath or Declaration: 7 Essential Filing Rules
What the inventor oath or declaration must say, when it is due, how substitute statements work when an inventor won't sign, and the errors that stall a patent.
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Virtual Patent Marking: 7 Smart Rules to Protect Damages
How virtual patent marking works, why it can be worth years of back damages, the webpage requirements that hold up in court, and the false-marking traps to avoid.
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Patent Acquisition: 7 Smart Steps to Buy Patents Safely
Buying a patent can hand you protection you could never file for in time — or a lawsuit magnet with a broken chain of title. A practitioner's 7-step framework for a clean, defensible patent acquisition.
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Patent Portfolio Pruning: 6 Smart Rules to Cut IP Costs
Most companies pay to keep patents no one uses. A practitioner's framework for patent portfolio pruning: when to review, how to score each asset, and how to exit a patent without simply letting it lapse.
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First Sale Doctrine: 6 Essential Rules for Resale Rights
Why you can resell a used book but not a digital movie file. A plain-English walk through 17 U.S.C. 109, the Kirtsaeng and ReDigi decisions, and where the first sale doctrine stops.
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Ex Parte Appeal to the PTAB: 7 Steps to Win Allowance
When an examiner will not budge, an ex parte appeal puts your rejected claims before a panel of PTAB judges. Here are the deadlines, fees, and briefing moves that decide the outcome.
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Patent Notice of Allowance: 7 Essential Next Steps
Got a patent notice of allowance? Here are the 7 steps that take you from allowance to a granted patent, including the deadlines and decisions most guides skip.
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Patent Examiner Interview: 7 Smart Ways to Win Allowance
A practical guide to the patent examiner interview: when to request one, how to file the AIR form, what to bring, and the mistakes that waste your 30 minutes.
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Patent Assignment Recordation: 7 Essential USPTO Rules
Recording a patent assignment is a cheap, ministerial step most owners treat as an afterthought. Miss the three-month window and a later buyer can take priority over you. Here is how recordation works and why it protects your title.
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Petition to Revive a Patent Application: 6 Essential Rules
A missed reply does not always kill a patent application. Here is how a petition to revive under 37 CFR 1.137 works, what the USPTO requires, and how to avoid ever needing one.
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Collective Mark: 6 Essential Steps to Register It in 2026
A trade association, a co-op, a union of growers - when a group needs one brand its members can share, the tool is a collective mark. Here's how it works and how to register one.
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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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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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