Inventor · disambiguated record
David Littlejohn
Also filed as: LITTLEJOHN DAVID · LITTLEJOHN DAVID C
4 granted patents·53 citations·filing 1986–1995
76Inventor score
Top patents by PatentIndex Score
4 records- 0158US5658545AMetal regeneration of iron chelates in nitric oxide scrubbingCALIFORNIA·Filed 1995·Granted Aug 19, 1997·16 cites·18 claims
- 0254US5416480AAnalog interface circuits for process controllers and process monitorsINTERACTIVE PROCESS CONTROLS C·Filed 1994·Granted May 16, 1995·19 cites·24 claims
- 0349US4732744AProcess for the combined removal of SO2 and NOx from flue gasUS ENERGY·Filed 1986·Granted Mar 22, 1988·15 cites·48 claims
- 0429US4837361AA process for the preparation of cysteine from cystineUS ENERGY·Filed 1987·Granted Jun 6, 1989·3 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →