Reissue application drawings follow 37 CFR 1.173, not ordinary amendment practice. Seven rules on clean copies, replacement sheets, labels and new matter.
Utility Patent Drawings: 9 Critical Rules for Claim Coverage
Utility patent drawings must show every claimed feature under 37 CFR 1.83(a). Nine rules on sheets, views, numerals and color petitions before you file.
Semiconductor Patent Drawings: 7 Critical Layer Rules
Chip applications live or die on their cross-sections. Seven rules for semiconductor patent drawings that survive hatching, two-thirds reduction and a formalities review.
Patent Drawings for Medical Devices: 9 Proven Standards
Catheters, stents and surgical instruments fail formalities review for reasons that never trouble a mechanical linkage. Here is what the rules actually require.
Continuation Application Drawings: 7 Critical Rules
A continuation inherits the parent’s disclosure, and that disclosure is the outer limit of what its figures may show. Here is where the line actually falls.
Patent Drawing Compliance: 9 Critical Checks Before Filing
Most drawing objections are not artistic judgements – they are nine measurable form rules. Here is the pre-filing checklist, with the citation behind each check.
Patent Diagrams: 7 Critical Rules for Flowcharts and Waveforms
Flowcharts, block diagrams, schematics and waveforms are held to the same formal standard as structural figures – and to a few rules that apply to nothing else.
Design Patent Drawing Broken Lines: 7 Critical Rules
Design patent drawing broken lines define claim scope, not decoration. The 7 rules under 37 CFR 1.152 and MPEP 1503.02 that examiners really enforce.
Patent Drawings for Chemical Inventions: 7 Critical Rules
Patent drawings for chemical inventions follow 37 CFR 1.84(d), 1.58 and the sequence rules, not the mechanical playbook. The 7 rules examiners enforce.
Patent Drawing Sectional Views: 7 Critical USPTO Rules
Patent drawing sectional views must satisfy 37 CFR 1.84(h)(3) on cut planes, arrows, hatching angle and materials. The 7 rules examiners enforce.
Patent Drawing Legends: 7 Critical Rules for 2026
How much text may a patent figure carry? The USPTO permits descriptive legends, the EPO permits almost none, and the PCT sets a treaty ceiling. A practical guide to getting the balance right.
Patent Drawing Figure Numbering: 7 Critical Rules
Figure numbers look trivial until an examiner objects to them. A practical guide to numbering views, sheets and partial figures under US, European and PCT rules.
AI-Generated Patent Drawings: 7 Critical Rules for 2026
The USPTO has never required that a figure be drawn by hand. But the moment an AI system touches a sheet, a specific set of signature, candor, confidentiality and export-control rules attaches to the person who files it.
Patent Drawings as Prior Art: 7 Critical Rules
A figure can invalidate a claim without a single supporting sentence. Here is what a drawing genuinely proves under MPEP 2125, where proportion arguments fall apart, and how the EPO treats the same picture.
Patent Drawing Line Thickness: 7 Rules to Avoid Objections
Line weight is the quietest formality in a patent application and one of the most common reasons a figure is objected to. Three offices state the requirement in almost identical words – and each one enforces it against a different reproduction test.
Patent Drawing Shading: 7 Essential Rules for 2026
Shading is the one drawing convention that is optional in utility cases, close to mandatory in design cases, and governed by two rules whose exceptions do not match. Here is how each one actually reads.
Patent Litigation in Netherlands: A Proven 2026 Guide
How patent disputes are actually fought and won in the Netherlands — the exclusive Hague forum, the Unified Patent Court, the fast kort geding injunction, and what it costs.
EPO Guidelines A-IX Drawings: 11 Essential Rules for 2026
Rule 46 EPC was deleted in 2023, and most of the drawing guidance still online quotes it as if it were law. Here is the chapter that actually governs European drawings now, section by section.
Best Patent Drafting Software: 9 Tools Attorneys Use
A practical, vendor-neutral look at the best patent drafting software, what each tool actually does, and the risks every attorney should weigh before buying.
37 CFR 1.83: 7 Proven Rules for Patent Drawing Content
Most drawing objections are about form. The expensive ones are about content: a claim limitation that appears nowhere in the figures. Here is what 37 CFR 1.83 actually demands, and why a drawing filed later cannot rescue you.