Inventor · disambiguated record
Joseph L. Welch
Also filed as: WELCH JOSEPH · WELCH JOSEPH L
3 granted patents·70 citations·filing 1989–1995
73Inventor score
Top patents by PatentIndex Score
3 records- 0163US5577776ATee fitting for lined pipeTDW DELEWARE INC·Filed 1995·Granted Nov 26, 1996·36 cites·10 claims
- 0259US5005633ALens blocking apparatusCOBURN OPTICAL IND A DIVISION·Filed 1989·Granted Apr 9, 1991·18 cites·14 claims
- 0348US5505811ASidewall applicator for heat fusion of a fitting to a plastic pipeTDW DELAWARE INC·Filed 1994·Granted Apr 9, 1996·16 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →