Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–4 of 4 inventors

Rank Inventor Primary Company Patents
1 Daniel George Purkis Petrowell Limited 2
2 Christopher William Hales Baker Hughes Oilfield Operations 1
2 Andrew John Elrick Weatherford Technology Holdings 1
2 Gavin Lafferty Halliburton Energy Services 1