Inventor · disambiguated record
John M. Kapphahn
Also filed as: KAPPHAHN JOHN M
7 granted patents·60 citations·filing 1981–2015
83Inventor score
Files withKAPPHAHN JOHN M5
Top patents by PatentIndex Score
7 records- 0168US9072217B2Vacuum planter exhaust filtration systemKAPPHAHN JOHN M·Filed 2013·Granted Jul 7, 2015·7 cites·20 claims
- 0264US5528855AFoldable artificial mulch cover having slit installation feature with intact peripheryFiled 1995·Granted Jun 25, 1996·26 cites·19 claims
- 0351US6098301AChain measuring systemFiled 1998·Granted Aug 8, 2000·17 cites·17 claims
- 0448USD272980SSickle guard straightening hand toolKAPPHAHN JOHN M·Filed 1981·Granted Mar 13, 1984·5 cites·1 claims
- 0542US9451741B2Vacuum planter exhaust filtration systemKAPPHAHN JOHN M·Filed 2015·Granted Sep 27, 2016·0 cites·20 claims
- 0634US4541267ASickle guard aligning toolKAPPHAHN JOHN M·Filed 1983·Granted Sep 17, 1985·4 cites·23 claims
- 0732USD280068SSickle guard aligning hand toolKAPPHAHN JOHN M·Filed 1983·Granted Aug 13, 1985·1 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →