Individual holder
PENNIMAN DAVID T
US·3 granted patents·56 citations·filing 1990–1992
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0169US5207403ADevice and method to support polyethylene or other sheetingPENNIMAN DAVID T·Filed 1992·Granted May 4, 1993·34 cites·3 claims
- 0240US5203529ADevice to suspend polyethylene or other sheeting and components of such devicePENNIMAN DAVID T·Filed 1990·Granted Apr 20, 1993·21 cites·2 claims
- 0323US5309803ASystem including method and apparatus for cutting each layer of a double-layered roll of sheet to different lengths and widthsPENNIMAN DAVID T·Filed 1992·Granted May 10, 1994·1 cites·2 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →