Drafting claims that survive prosecution
Most rejections trace back to the first draft. A short field guide to writing claims that hold up across the next ten years of office actions.
By the time an examiner picks up an application, the most consequential decisions have already been made. The breadth, the support, the dependent ladder — these were set when the spec was filed, not when the office action arrived.
Good drafting begins with a single discipline: read the invention before reading the prior art. The shape of the claim should follow the shape of the contribution, not the shape of the search report. Otherwise the claim becomes a defensive crouch around what the search happened to find, instead of an articulation of what the inventor actually built.
From there, three habits compound. First, anchor every claim limitation in clear written description — vague support is the most common reason examiners refuse amendments later. Second, build a real dependent ladder, where each dependent narrows along a different axis (structure, function, environment). When prosecution forces a retreat, you want options, not a single fallback that leaves nothing left to claim.
Third, write for the litigator, not the examiner. The examiner sees the application for eighteen months. The litigator may see it for ten years. Every term you choose, every phrase you leave undefined, becomes a Markman exhibit if the IP is ever asserted. Define the technical terms that matter; let the boilerplate be boilerplate.
None of this is glamorous. But the difference between a portfolio that earns and a portfolio that sits is almost always made at the spec stage — not at the negotiation table.