Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6460567 | Sealed motor driven valve | Charles C. Hansen, III, Martin F. Kozi, Orval Kuhn | 2002-10-08 |
| 6244561 | Modulating expansion valve | Charles C. Hansen, III, Jeffrey A. Mackowiak, Santosh Kumar | 2001-06-12 |
| 6240948 | Rupture disk assembly | Charles C. Hansen, III, Orval Kuhn | 2001-06-05 |
| 5031068 | Liquid level control system for refrigeration apparatus | Charles C. Hansen, III, William J. Barbier, Curtis H. Knapp, Orval Kuhn | 1991-07-09 |
| 4809129 | Liquid level control system for refrigeration apparatus | Charles C. Hansen, III, William J. Barbier, Curtis H. Knapp, Orval Kuhn | 1989-02-28 |
| 4647740 | Float switch assembly for refrigeration system | Charles C. Hansen, III | 1987-03-03 |