Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
DR

Douglas M. Richards

ETEthyl: 3 patents #165 of 494Top 35%
Houston, TX: #6,659 of 21,073 inventorsTop 35%
Texas: #40,946 of 125,132 inventorsTop 35%
Overall (All Time): #1,657,838 of 4,157,543Top 40%
3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5211931 Removal of ethylene from silane using a distillation step after separation using a zeolite molecular sieve Robert H. Allen 1993-05-18
5075092 Process for preparation of silane James E. Boone, Joseph A. Bossier, III 1991-12-24
4847061 Process for preparation of silane Joseph A. Bossier, III, Lloyd T. Crasto 1989-07-11