Patents per Year
Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 7608334 | Oxidatively stable microlayers of gas diffusion layers | Joseph Frisk | 2009-10-27 | $50,181,000 |
| 6733841 | Hydrophilic treatment of a carbon fiber construction | Joseph Frisk | 2004-05-11 | |
| 6703068 | Amine oxide coating compositions | Klaus Hintzer, Armin Steurer, Dieter Birkhorst, James M. Larson, Joseph Frisk | 2004-03-09 | $31,317,000 |
| 6465041 | Method of making gas diffusion layers for electrochemical cells | Joseph Frisk, James M. Larson | 2002-10-15 | $20,323,000 |