DH

David J. Hoffmann

RH Rite-Hite Holding: 2 patents #1 of 22Top 5%
📍 Peosta, IA: #1 of 4 inventorsTop 25%
🗺 Iowa: #37 of 653 inventorsTop 6%
Overall (1997): #17,269 of 185,788Top 10%
3
Patents 1997

Issued Patents 1997

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
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