Assignee
GROTNES MACHINE WORKS INC
7 granted patents·155 citations·filing 1975–1978
Top patents by PatentIndex Score
7 records- 0197US4018634AMethod of producing high strength steel pipeGROTNES MACHINE WORKS INC·Filed 1975·Granted Apr 19, 1977·61 cites·9 claims
- 0280US3934324AMethod and apparatus for forming automotive wheel rim blanksGROTNES MACHINE WORKS INC·Filed 1975·Granted Jan 27, 1976·29 cites·24 claims
- 0360US3981172AMethod and apparatus for expanding spirally welded pipeGROTNES MACHINE WORKS INC·Filed 1975·Granted Sep 21, 1976·14 cites·6 claims
- 0455US4050135AFlat base truck rim forming systemGROTNES MACHINE WORKS INC·Filed 1975·Granted Sep 27, 1977·19 cites·13 claims
- 0550US3952630ATruck rim edge milling apparatusGROTNES MACHINE WORKS INC·Filed 1975·Granted Apr 27, 1976·13 cites·7 claims
- 0648US3991620AApparatus for determining imbalance of tires and the likeGROTNES MACHINE WORKS INC·Filed 1975·Granted Nov 16, 1976·10 cites·4 claims
- 0747US4187406AMachine for welding seams in automotive wheel rim blanksGROTNES MACHINE WORKS INC·Filed 1978·Granted Feb 5, 1980·9 cites·16 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →