Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8640265 | Protective hood | — | 2014-02-04 |
| 8201273 | Protective hood | — | 2012-06-19 |
| 8037547 | Protective hood | — | 2011-10-18 |
| 5906100 | Dewar for storing and delivering liquid cryogen | Bruce D. Caldwell, John Fricker, Charles L. Hethcoat, III, Rick C. Hunter, Paul Robinson | 1999-05-25 |
| 5619857 | Dewar for storing and delivering liquid cryogen | Bruce D. Caldwell, John Fricker, Rick C. Hunter | 1997-04-15 |
| 5438837 | Apparatus for storing and delivering liquid cryogen and apparatus and process for filling same | Bruce D. Caldwell | 1995-08-08 |