Inventor · disambiguated record

William J. Engstrom

Also filed as: ENGSTROM WILLIAM J

2 granted patents·31 citations·filing 1975–1978

61Inventor score

Technology areasB28B E21B

Files withENGSTROM WILLIAM J2

Top patents by PatentIndex Score

2 records

0152US4193459APost-hole driverENGSTROM WILLIAM J·Filed 1978·Granted Mar 18, 1980·23 cites·5 claims
0242US4008026AConcrete forming apparatus for making fence posts and the likeENGSTROM WILLIAM J·Filed 1975·Granted Feb 15, 1977·8 cites·3 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →