Paul Johren

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Burscheid, DE

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Patents Grantslast 30 patents

Information Patent Grant
Gasket impregnated with a polymerizable liquid and method for its m...
- Patent number 4,201,804
- Issue date May 6, 1980
- Goetzewerke Friedrich Goetze AG
- Friedhelm Stecher
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Multi-part piston oil ring
- Patent number 4,183,544
- Issue date Jan 15, 1980
- Goetzewerke, Friedrich Goetze AG
- Martin Morsbach
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Axially and radially clamping spreader ring for an oil scraping pis...
- Patent number 4,145,060
- Issue date Mar 20, 1979
- Goetze AG
- Friedhelm Stecher
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Circumferentially resilient piston ring
- Patent number 4,139,205
- Issue date Feb 13, 1979
- Goetze AG
- Gerhard Duck
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...