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Patent applications and USPTO patent grants for Mankowski; John P..The latest application filed is for "articulating vacuum plate system and related method".
Patent | Date |
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Articulating vacuum plate system and related method Grant 10,391,716 - Mankowski , et al. A | 2019-08-27 |
Articulating Vacuum Plate System And Related Method App 20170182686 - Mankowski; John P. ;   et al. | 2017-06-29 |
Roof ventilator and filter App 20030077999 - Mankowski, John P. | 2003-04-24 |
Roof ventilator and filter Grant 6,491,581 - Mankowski December 10, 2 | 2002-12-10 |
Stand-up wheelchair Grant 5,096,008 - Mankowski March 17, 1 | 1992-03-17 |
Roof ventilator Grant 5,070,771 - Mankowski December 10, 1 | 1991-12-10 |
Roof ventilator Grant 5,050,489 - Mankowski September 24, 1 | 1991-09-24 |
Roof ridge ventilators Grant 4,903,445 - Mankowski February 27, 1 | 1990-02-27 |
Roof ridge ventilator Grant 4,676,147 - Mankowski June 30, 1 | 1987-06-30 |
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