Individual holder
FENTON DAVID S
4 granted patents·40 citations·filing 1988–2007
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
4 records- 0182US7444912B2Portable sawmill with bi-directional cutting circular sawsFENTON DAVID S·Filed 2005·Granted Nov 4, 2008·13 cites·28 claims
- 0271US7182557B2Rail grooming machine and method of useFENTON DAVID S·Filed 2005·Granted Feb 27, 2007·6 cites·5 claims
- 0363US4901778ASystem for replacing feedroll insertsFENTON DAVID S·Filed 1988·Granted Feb 20, 1990·21 cites·5 claims
- 0445US7331740B2Rail grooming machine and method of useFENTON DAVID S·Filed 2007·Granted Feb 19, 2008·0 cites·9 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →