Inventor · disambiguated record
John P. Leuenberger
Also filed as: LEUENBERGER JOHN P
3 granted patents·85 citations·filing 1977–1981
74Inventor score
Technology areasB43K
Files withKOH I NOOR RAPIDOGRAPH3
Top patents by PatentIndex Score
3 records- 0187US4753546APressure balanced stylographic penKOH I NOOR RAPIDOGRAPH·Filed 1981·Granted Jun 28, 1988·52 cites·8 claims
- 0284USD257857SDrawing penKOH I NOOR RAPIDOGRAPH·Filed 1978·Granted Jan 13, 1981·20 cites·1 claims
- 0369USD251977SDual cosmetic pencil sharpenerKOH I NOOR RAPIDOGRAPH·Filed 1977·Granted May 29, 1979·13 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →