PB

Peter A. Betts

DC Donaldson Company: 12 patents #102 of 695Top 15%
📍 Prior Lake, MN: #56 of 425 inventorsTop 15%
🗺 Minnesota: #6,285 of 52,454 inventorsTop 15%
Overall (All Time): #426,593 of 4,157,543Top 15%
12
Patents All Time

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDate
6892854 Muffler with catalytic converter arrangement; and method Wayne M. Wagner, Marty Barris, Douglas E. Flemming, James C. Rothman 2005-05-17
6550573 Muffler with catalytic converter arrangement, and method Wayne M. Wagner, Marty Barris, Douglas E. Flemming, James C. Rothman 2003-04-22
5828013 Muffler with catalytic converter arrangement; and method Wayne M. Wagner, Marty Barris, Douglas E. Flemming, James C. Rothman 1998-10-27
5683479 Air cleaner having scavenger arrangement Gary R. Gillingham, Daniel T. Risch, James C. Rothman, Fred H. Wahlquist 1997-11-04
5575826 Air cleaner Gary R. Gillingham, Daniel T. Risch, James C. Rothman, Fred H. Wahlquist 1996-11-19
5426269 Muffler with catalytic converter arrangement; and method Wayne M. Wagner, Marty Barris, Douglas E. Flemming, James C. Rothman, John S. Wiese +1 more 1995-06-20
5401285 Air cleaner having scavenger arrangement for precleaner and filter thereof Gary R. Gillingham, Daniel T. Risch, James C. Rothman, Fred H. Wahlquist 1995-03-28
5357755 Trap apparatus with bypass Gary R. Gillingham, Marty Barris, Charles O. Reinhart, Julian A. Imes, Erland D. Anderson 1994-10-25
5355973 Muffler with catalytic converter arrangement; and method Wayne M. Wagner, Marty Barris, Douglas E. Flemming, James C. Rothman 1994-10-18
5293742 Trap apparatus with tubular filter element Gary R. Gillingham, James C. Rothman, Kelly C. Robertson, Marty Barris, Wayne M. Wagner 1994-03-15
5246205 Valve assembly and use Gary R. Gillingham, James C. Rothman, Wayne M. Wagner 1993-09-21
4876011 Oil recovery apparatus Darrell D. Jahn 1989-10-24