Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5946921 | Method for repairing HFC refrigerant system | William Henry Mapes, III, Joseph B. Hofelich | 1999-09-07 |
JJ
John Joseph Hellmueller, Jr.
Overall (All Time): #3,659,067 of 4,157,543Top 90%
1
Patents All Time