JH

John Hiemstra

DC Donaldson Company: 6 patents #202 of 695Top 30%
📍 Lakeville, MN: #109 of 513 inventorsTop 25%
🗺 Minnesota: #10,397 of 52,454 inventorsTop 20%
Overall (All Time): #734,537 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
9273585 System and method for regenerating an auxiliary power unit exhaust filter Eivind Stenersen, Wenzhong Zhang, Allan T. Hovda, Gary Dale Reeves, Josh Kundert +4 more 2016-03-01
8776502 System and method for regenerating an auxiliary power unit exhaust filter Eivind Stenersen, Wenzhong Zhang, Allan T. Hovda, Gary Dale Reeves, Josh Kundert +2 more 2014-07-15
8061129 System and method to regenerate a diesel particulate filter Jill N. Irlbeck, Erich Albert Lucht, Allan T. Hovda, John J. Shaw, Gary Dale Reeves +7 more 2011-11-22
7294162 Exhaust filter Steve Anderson, Jared D. Blaisdell, John Belisle, John T. Herman, Gary Dale Reeves +1 more 2007-11-13
6354398 Mufflers for use with engine retarders; and methods Theodore G. Angelo, John Edward Hamrin, Eivind Stenersen, Wayne M. Wagner, Ted J. Wiegandt 2002-03-12
6082487 Mufflers for use with engine retarders; and methods Theodore G. Angelo, John Edward Hamrin, Eivind Stenersen, Wayne M. Wagner, Ted J. Wiegandt 2000-07-04
4969537 Muffler assembly and method of manufacture Wayne M. Wagner, John Campbell, William L. Burchett, John S. Wiese, Timothy A. Bethke 1990-11-13