Inventor · disambiguated record
John A. Coffman
Also filed as: COFFMAN JOHN A
4 granted patents·55 citations·filing 1984–1995
76Inventor score
Files withWRIGHT MALTA CORP4
Top patents by PatentIndex Score
4 records- 0172US4597772AFixed kiln with rotor steam gasifierWRIGHT MALTA CORP·Filed 1984·Granted Jul 1, 1986·29 cites·34 claims
- 0254US5510393AMethod for producing methanolWRIGHT MALTA CORP·Filed 1995·Granted Apr 23, 1996·17 cites·14 claims
- 0344US5507846AApparatus for producing methane-rich gas using a fixed kiln with rotor steam gasifierWRIGHT MALTA CORP·Filed 1994·Granted Apr 16, 1996·7 cites·13 claims
- 0428US5512255AApparatus for producing methanolWRIGHT MALTA CORP·Filed 1994·Granted Apr 30, 1996·2 cites·12 claims
Join the waitlist — get patent alerts
Get an alert when John A. Coffman files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →