Inventor · disambiguated record

Frederik A. Siemonsen

Also filed as: SIEMONSEN FREDERIK A

2 granted patents·55 citations·filing 1977–1995

65Inventor score

Technology areasA63B B21D

Files withREYNOLDS METALS CO1 WILLETT M S INC1

Top patents by PatentIndex Score

2 records

0181US6290447B1Single station blanked, formed and curled can end with outward formed curlWILLETT M S INC·Filed 1995·Granted Sep 18, 2001·35 cites·4 claims
0248US4089199ABall bat and method of making the sameREYNOLDS METALS CO·Filed 1977·Granted May 16, 1978·20 cites·7 claims

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