Inventor · disambiguated record

Robert Warthmann

Also filed as: WARTHMANN ROBERT

2 granted patents·22 citations·filing 1981–1990

60Inventor score

Technology areasB29C E01D

Files withWARTHMANN ROBERT2

Top patents by PatentIndex Score

2 records

0132US5051024ASliding closures for roadway expansion jointsWARTHMANN ROBERT·Filed 1990·Granted Sep 24, 1991·13 cites·14 claims
0232US4401497AMethod and apparatus for butt welding of plastic pipes of large diameterWARTHMANN ROBERT·Filed 1981·Granted Aug 30, 1983·9 cites·8 claims

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