DH

David J. Hoffmann

RH Rite-Hite Holding: 24 patents #12 of 246Top 5%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
XO Xoft: 1 patents #18 of 25Top 75%
📍 Peosta, IA: #2 of 44 inventorsTop 5%
🗺 Iowa: #228 of 15,303 inventorsTop 2%
Overall (All Time): #102,082 of 4,157,543Top 3%
34
Patents All Time

Issued Patents All Time

Showing 26–34 of 34 patents

Patent #TitleCo-InventorsDate
5704500 Dispensing-sealing arrangement for a container Robert Anthony James Hunter 1998-01-06
5675945 Loading dock shelter with a rotatable seal Jon Giuliani, Bill Triervieler, Tom Boffeli, Tom Medley, Bob Frommelt +2 more 1997-10-14
5622016 Gutter and seal assembly Robert J. Frommelt, William Triervieler, Kenneth Lenz, Thomas J. Medley, Thomas J. Boffeli 1997-04-22
5606854 Exhaust filter 1997-03-04
5473846 Loading dock shelter with a rotatable seal Jon Giuliani, Bill Triervieler, Tom Boffeli, Tom Medley, Bob Frommelt +2 more 1995-12-12
5394662 Seal assembly for a loading dock shelter Jon Giuliani, William Triervieler, Thomas J. Boffeli, Thomas J. Medley, Robert J. Frommelt +2 more 1995-03-07
5005664 Vehicle locking system 1991-04-09
4966019 Anti-theft arrangement for a vehicle Ralph Harris 1990-10-30
4211044 Tube space frame system Paul F. Gugliotta 1980-07-08