One concept, one word

How the problem gets created

Drafting in sessions. Merging an inventor disclosure with a drafter's text. Translating. Nobody intends it and it reads perfectly naturally - housing in one paragraph, casing in the next, enclosure in the claims.

Then an examiner has to decide whether those are one thing or three, and an opponent later argues that the claim term was never properly described.

The five-minute fix

Before drafting, write a term list: one name per component, one name per step. Add a definitions paragraph that says once, explicitly, which other words mean the same thing.

After drafting, search the document for each alternative and confirm it appears nowhere else. Then check the drawings: every reference numeral against the description, and every described feature against the drawings, in both directions.

Patents are not prose. Varying the vocabulary to make the text read better actively damages the document.

What to actually do

• Write a term list before drafting and stick to it.
• Add an explicit definitions paragraph.
• Search the finished draft for stray synonyms.
• Check drawing numerals against the description in both directions.