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Patent applications and USPTO patent grants for Schelhaas; Douglas D..The latest application filed is for "synchronous belt drive system".
Patent | Date |
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Synchronous belt drive system Grant 11,421,561 - Gao , et al. August 23, 2 | 2022-08-23 |
Synchronous Belt Drive System App 20200141283 - Gao; Min ;   et al. | 2020-05-07 |
Hose anti-collapse ribs, systems and methods Grant 9,890,879 - Schelhaas , et al. February 13, 2 | 2018-02-13 |
Hose anti-collapse ribs, systems and methods Grant 9,038,671 - Schelhaas , et al. May 26, 2 | 2015-05-26 |
Low-Permeation Flexible Fuel Hose App 20100300571 - Miller; Lance ;   et al. | 2010-12-02 |
Hose anti-collapse ribs, systems and methods App 20090229697 - Schelhaas; Douglas D. ;   et al. | 2009-09-17 |
Hose anti-collapse ribs, systems and methods App 20090211659 - Schelhaas; Douglas D. ;   et al. | 2009-08-27 |
Coupled hose assembly Grant 4,660,867 - Kemper , et al. April 28, 1 | 1987-04-28 |
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