Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4950421 | Dewar cryopumping using molecular sieve | John A. Davis, Leonard E. Peck, Jr., Wesson P. Sargent | 1990-08-21 |
| 4886240 | Dewar cryopumping using barium oxide composite for moisture removal | — | 1989-12-12 |