The story
Named after the legal case Ex parte Jepson, 243 Off. Gaz. Pat. Off. 525 (Ass't Comm'r Pat. 1917).
Etymology from Wiktionary, CC BY-SA 4.0.
Jepson claim
Today it means: A patent claim where one or more limitations are specifically identified as a point of novelty, distinguishable over at least the contents of the preamble. Full definition →