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Patent applications and USPTO patent grants for Schwalm; Dieter.The latest application filed is for "pipe connection having improved strength".
Patent | Date |
---|---|
Pipe connection having improved strength Grant 7,654,588 - Schwalm February 2, 2 | 2010-02-02 |
Pipe Connection Having Improved Strength App 20080122223 - Schwalm; Dieter | 2008-05-29 |
Pipe Joint Having a Defined Sealing Effect App 20070228732 - Schwalm; Dieter | 2007-10-04 |
Connector for plastic tubes Grant 5,470,113 - Schwalm , et al. November 28, 1 | 1995-11-28 |
Tool for closing pipe couplings Grant 4,483,056 - Schwalm , et al. November 20, 1 | 1984-11-20 |
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