loadpatents
Patent applications and USPTO patent grants for Chwala; Kevin R..The latest application filed is for "hinge assembly for supporting a fan on a roof".
Patent | Date |
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Hinge Assembly For Supporting A Fan On A Roof App 20180209672 - Chwala; Kevin R. | 2018-07-26 |
Duct access door Grant 9,500,387 - Chwala , et al. November 22, 2 | 2016-11-22 |
Hinge assembly for supporting a fan on a roof Grant 9,435,556 - Chwala September 6, 2 | 2016-09-06 |
Hinge Assembly For Supporting A Fan On A Roof App 20160252263 - Chwala; Kevin R. | 2016-09-01 |
Hinge assembly for supporting a fan on a roof Grant 9,303,887 - Chwala April 5, 2 | 2016-04-05 |
Duct access door Grant 9,163,851 - Chwala October 20, 2 | 2015-10-20 |
Duct Access Door App 20150020459 - Chwala; Kevin R. | 2015-01-22 |
Duct access door Grant 8,813,426 - Chwala August 26, 2 | 2014-08-26 |
Duct Access Door App 20140190087 - Chwala; Kevin R. | 2014-07-10 |
Duct Access Door App 20140123561 - Chwala; Kevin R. | 2014-05-08 |
Duct access door Grant 8,656,645 - Chwala February 25, 2 | 2014-02-25 |
Hinge assembly for supporting a fan on a roof Grant 8,535,128 - Chwala September 17, 2 | 2013-09-17 |
Hinge Assembly For Supporting A Fan On A Roof App 20130017775 - Chwala; Kevin R. | 2013-01-17 |
Grease trap and filter apparatus Grant 5,196,040 - Malloy , et al. March 23, 1 | 1993-03-23 |
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