Inventor · disambiguated record
Siegfried Frei
Also filed as: FREI SIEGFRIED · OPPRECHT PAUL
10 granted patents·1 pending application·222 citations·filing 1978–2007
90Inventor score
Top patents by PatentIndex Score
11 records- 0191US4538439ACans formed of thin-walled material and apparatus for forming precise fine beads thereinCANTEC INC·Filed 1983·Granted Sep 3, 1985·47 cites·7 claims
- 0291US4487048AMethod and apparatus for beading the bodies of sheet metal cansCANTEC INC·Filed 1982·Granted Dec 11, 1984·48 cites·15 claims
- 0381US4512490AStrengthened can bodies of thin-walled metalCANTEC INC·Filed 1982·Granted Apr 23, 1985·48 cites·7 claims
- 0478US4588605AMethod of and arrangement for applying a strip-shaped powder layer on a weld seam of containers, and a containerFREI SIEGFRIED·Filed 1984·Granted May 13, 1986·38 cites·8 claims
- 0554US4249476AApparatus for applying a protective coating to the welded seam of a can body or the likeFREI SIEGFRIED·Filed 1978·Granted Feb 10, 1981·12 cites·13 claims
- 0651US4661379AMethod and apparatus for applying strip-shaped powder layer to a can body or the like, and powder-carrying can bodyFREI SIEGFRIED·Filed 1985·Granted Apr 28, 1987·13 cites·29 claims
- 0745US2009182449A1Machining MethodSULZER MARKETS & TECHNOLOGY AG·Filed 2007·Application pending·0 cites
- 0839US4635841AMethod for bringing together the edges of a blank of sheet metal rolled to a cylinder as well as a guide apparatus for performing the methodCANTEC INC·Filed 1984·Granted Jan 13, 1987·5 cites·23 claims
- 0929US4389964AApparatus for applying a protective coating to the seam of welded can sleevesFREI MASCHINENBAU AG·Filed 1981·Granted Jun 28, 1983·4 cites·16 claims
- 1027US4696253AApparatus for applying a strip-shaped powder layer onto a weld seam of containersFREI SIEGFRIED·Filed 1986·Granted Sep 29, 1987·3 cites·5 claims
- 1124US5411396AMethod of and implement for extraction of dental prosthesesATD SARL·Filed 1994·Granted May 2, 1995·4 cites·27 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →