Inventor · disambiguated record
Alan Francis Diwell
Also filed as: DIWELL ALAN F · DIWELL ALAN FRANCIS
8 granted patents·361 citations·filing 1974–2003
90Inventor score
Top patents by PatentIndex Score
8 records- 0195US3972837ACatalyst for purifying automotive exhaust gasesJOHNSON MATTHEY CO LTD·Filed 1974·Granted Aug 3, 1976·85 cites·4 claims
- 0293US4089810ACatalystJOHNSON MATTHEY CO LTD·Filed 1976·Granted May 16, 1978·85 cites·2 claims
- 0386US4127510ACatalyst for the purification of an exhaust gasJOHNSON MATTHEY CO LTD·Filed 1976·Granted Nov 28, 1978·44 cites·3 claims
- 0485US6546717B1Combatting air pollutionJOHNSON MATTHEY PLC·Filed 1999·Granted Apr 15, 2003·52 cites·16 claims
- 0578US6948308B2Combatting air pollutionJOHNSON MATTHEY PLC·Filed 2003·Granted Sep 27, 2005·15 cites·21 claims
- 0677US4996180ACatalyst of copper oxide and ceriaJOHNSON MATTHEY PLC·Filed 1988·Granted Feb 26, 1991·40 cites·12 claims
- 0776US4539311AProcess for making a lead-tolerant catalyst system for purifying exhaustJOHNSON MATTHEY PLC·Filed 1984·Granted Sep 3, 1985·27 cites·5 claims
- 0851US4478797AExhaust gas purificationJOHNSON MATTHEY CO LTD·Filed 1982·Granted Oct 23, 1984·13 cites·13 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →