Inventor · disambiguated record
Mark R. Hapgood
Also filed as: HAPGOOD MARK R
4 granted patents·6 citations·filing 1996–1998
66Inventor score
Top patents by PatentIndex Score
4 records- 0129USD390949SGrate bar key for stokers feeding steam generator furnacesCOMBUSTION ENG·Filed 1996·Granted Feb 17, 1998·2 cites·1 claims
- 0226USD391633SMulti-piece wide stoker key for stokers feeding steam generator furnacesCOMBUSTION ENG·Filed 1996·Granted Mar 3, 1998·1 cites·1 claims
- 0326USD391634SOne piece wide stoker key for stokers feeding steam generator furnacesCOMBUSTION ENG·Filed 1996·Granted Mar 3, 1998·1 cites·1 claims
- 0424USD414859SSingle-piece grate bar key for stokers feeding steam generator furnacesHAPGOOD MARK R·Filed 1998·Granted Oct 5, 1999·2 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →