Assignee
SCHWARZ WALTER
9 granted patents·241 citations·filing 1973–1991
Top patents by PatentIndex Score
9 records- 0188US3989280APipe jointSCHWARZ WALTER·Filed 1973·Granted Nov 2, 1976·123 cites·1 claims
- 0282US4147381APipe couplingSCHWARZ WALTER·Filed 1977·Granted Apr 3, 1979·39 cites·14 claims
- 0377US3993331AElectrically insulating pipe couplingSCHWARZ WALTER·Filed 1974·Granted Nov 23, 1976·26 cites·26 claims
- 0466US4234368AMethod of making a pipe couplingSCHWARZ WALTER·Filed 1978·Granted Nov 18, 1980·22 cites·3 claims
- 0558US4209482AMethod of producing shaped bodies of reinforced synthetic resinSCHWARZ WALTER·Filed 1978·Granted Jun 24, 1980·16 cites·12 claims
- 0642US5079938AProcess and apparatus for producing a helically seamed pipeSCHWARZ WALTER·Filed 1988·Granted Jan 14, 1992·8 cites·13 claims
- 0733US5280965AForm-fitting and material-locking pipe connection, in particular electrically insulating pipe connectionSCHWARZ WALTER·Filed 1991·Granted Jan 25, 1994·6 cites·26 claims
- 0829US4884426ADevice for spiral winding of tapesSCHWARZ WALTER·Filed 1988·Granted Dec 5, 1989·1 cites·16 claims
- 0929US4774827AProcess of spirally winding tapesSCHWARZ WALTER·Filed 1988·Granted Oct 4, 1988·0 cites·5 claims
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