Individual holder
HUMPHREY JOHN L
US·6 granted patents·136 citations·filing 1992–2013
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
6 records- 0192US5261213AGreensrollerHUMPHREY JOHN L·Filed 1992·Granted Nov 16, 1993·69 cites·20 claims
- 0288US8161720B1Grass treatment unit for walk behind greensmowerHUMPHREY JOHN L·Filed 2010·Granted Apr 24, 2012·19 cites·5 claims
- 0384US7624560B1Depth/height adjuster for a grass treatment insertHUMPHREY JOHN L·Filed 2008·Granted Dec 1, 2009·21 cites·8 claims
- 0479US9185855B2Tree removal—field reclamation attachmentHUMPHREY JOHN L·Filed 2013·Granted Nov 17, 2015·5 cites·17 claims
- 0579US8316628B2Grass treatment unit with adjustable hood and grass treatment insertHUMPHREY JOHN L·Filed 2008·Granted Nov 27, 2012·15 cites·10 claims
- 0666US7588389B1Greensroller with variable vibration amplitudeHUMPHREY JOHN L·Filed 2006·Granted Sep 15, 2009·7 cites·20 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →