Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5392610 | Method and apparatus for recovering refrigerants from home refrigeration systems | John A. Nelson, David B. Kirby, Phalguni S. Roy, John L. Wuepper, Nihat O. Cur +2 more | 1995-02-28 |
| 5293756 | Method and apparatus for recovering refrigerants from home refrigeration systems | John A. Nelson, David B. Kirby, Phalguni S. Roy, John L. Wuepper, Nihat O. Cur +2 more | 1994-03-15 |
| 4996848 | Method and apparatus for recovering refrigerants from home refrigeration systems | John A. Nelson, David B. Kirby, Phalguni S. Roy, John L. Wuepper, Omer N. Cur | 1991-03-05 |