Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE43398 | Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator | Scott C. Honkonen, Theodore B. Hill, Charles C. Hill | 2012-05-22 |
| 6698423 | Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator | Scott C. Honkonen, Theodore B. Hill, Charles C. Hill | 2004-03-02 |
| 6681764 | Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator | Scott C. Honkonen, Theodore B. Hill, Charles C. Hill | 2004-01-27 |
| 6651653 | Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator | Scott C. Honkonen, Theodore B. Hill, Charles C. Hill | 2003-11-25 |
| 6247234 | Razor and blade | James Hill | 2001-06-19 |
| 5979440 | Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator | Scott C. Honkonen, Theodore B. Hill, Charles C. Hill | 1999-11-09 |
| 4738122 | Refrigerant expansion device with means for capturing condensed contaminants to prevent blockage | — | 1988-04-19 |
| 4631928 | Joule-Thomson apparatus with temperature sensitive annular expansion passageway | — | 1986-12-30 |
| 4420265 | Infrared temperature monitoring apparatus having means for sky radiation compensation | Charles E. Everest | 1983-12-13 |