Individual holder
GRAMLING WILLIAM D
4 granted patents·1 pending application·60 citations·filing 1980–2010
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
5 records- 0175US4712981APressure-operated valving for oil and gas well swabsGRAMLING WILLIAM D·Filed 1986·Granted Dec 15, 1987·36 cites·12 claims
- 0268US4389680ASpecial effects editing method and apparatus using retrieved videoGRAMLING WILLIAM D·Filed 1980·Granted Jun 21, 1983·16 cites·6 claims
- 0331US2011215191A1Vortex left platformGRAMLING WILLIAM D·Filed 2010·Application pending·0 cites
- 0430US4751870ASeals for gas and oil well swabsGRAMLING WILLIAM D·Filed 1986·Granted Jun 21, 1988·8 cites·11 claims
- 0525US4700775ADual-action retrieving tool for oil well swabsGRAMLING WILLIAM D·Filed 1986·Granted Oct 20, 1987·0 cites·4 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →