Inventor · disambiguated record
Donald C. Ulrich
Also filed as: ULRICH DONALD C · ULRICH DONALD CHARLES
3 granted patents·139 citations·filing 1988–1997
76Inventor score
Technology areasF16J
Files withCRANE JOHN INC3
Top patents by PatentIndex Score
3 records- 0185US5957461ARadial lip shaft sealCRANE JOHN INC·Filed 1997·Granted Sep 28, 1999·58 cites·20 claims
- 0278US5975538ARadial lip shaft sealCRANE JOHN INC·Filed 1997·Granted Nov 2, 1999·50 cites·12 claims
- 0371US5039112AMulti-layer lip seal assemblyCRANE JOHN INC·Filed 1988·Granted Aug 13, 1991·31 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →