Inventor · disambiguated record
W. Keith Black
Also filed as: BLACK W KEITH
3 granted patents·94 citations·filing 1990–1992
74Inventor score
Files withCASHCO INC3
Top patents by PatentIndex Score
3 records- 0176US5288052ASelf-draining sanitary control valveCASHCO INC·Filed 1992·Granted Feb 22, 1994·51 cites·31 claims
- 0268US5141022APressure regulating valve apparatusCASHCO INC·Filed 1991·Granted Aug 25, 1992·32 cites·17 claims
- 0341US5070901APressure regulating valve apparatusCASHCO INC·Filed 1990·Granted Dec 10, 1991·11 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →