Individual holder
DIRST WILLIAM F
2 granted patents·1 pending application·11 citations·filing 2007–2012
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0159US7658211B1Tennis ball recharging apparatus methodDIRST WILLIAM F·Filed 2007·Granted Feb 9, 2010·8 cites·20 claims
- 0253US8627859B2Apparatus for recharging tennis balls and methodDIRST WILLIAM F·Filed 2010·Granted Jan 14, 2014·3 cites·20 claims
- 0335US2012291914A1Apparatus for recharging pressurized balls and methodDIRST WILLIAM F·Filed 2012·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →