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Patent applications and USPTO patent grants for Tigges; Burkhard.The latest application filed is for "inductive proximity switch".
Patent | Date |
---|---|
Inductive proximity switch Grant 6,545,464 - Tigges , et al. April 8, 2 | 2003-04-08 |
Inductive proximity switch Grant 5,264,733 - Tigges November 23, 1 | 1993-11-23 |
Inductive proximity switch Grant 5,012,206 - Tigges April 30, 1 | 1991-04-30 |
Inductive proximity switch oscillator having same activating range for ferrous and nonferrous metals Grant 4,879,531 - Tigges , et al. November 7, 1 | 1989-11-07 |
Non-contact operating proximity switch Grant 4,757,213 - Tigges , et al. July 12, 1 | 1988-07-12 |
Self-monitoring fault current safety switch Grant 4,742,422 - Tigges May 3, 1 | 1988-05-03 |
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