Individual holder
SHELSTAD RICHARD J
US·5 granted patents·105 citations·filing 1974–1991
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
5 records- 0173US4450600AGantry washing device for tractor-trailer trucksSHELSTAD RICHARD J·Filed 1982·Granted May 29, 1984·29 cites·12 claims
- 0267US4164053AVehicle washing apparatusSHELSTAD RICHARD J·Filed 1974·Granted Aug 14, 1979·20 cites·13 claims
- 0366US5182008AFiltration assemblySHELSTAD RICHARD J·Filed 1991·Granted Jan 26, 1993·33 cites·15 claims
- 0449US4097379ASelf-cleaning filter assemblySHELSTAD RICHARD J·Filed 1977·Granted Jun 27, 1978·12 cites·15 claims
- 0542US4937005AFilter assemblySHELSTAD RICHARD J·Filed 1987·Granted Jun 26, 1990·11 cites·14 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →