Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6945119 | Apparatus and methods for heat loss pressure measurement | Michael D. Borenstein | 2005-09-20 |
| 6938493 | Apparatus and methods for heat loss pressure measurement | Michael D. Borenstein | 2005-09-06 |
| 6865952 | Apparatus and methods for heat loss pressure measurement | Michael D. Borenstein | 2005-03-15 |
| 6658941 | Apparatus and methods for heat loss pressure measurement | Michael D. Borenstein | 2003-12-09 |
| 6412349 | Force balancing capacitance manometer | Wilbert Leonard Porter | 2002-07-02 |
| 6227056 | Methods of pressure measurement | Michael D. Borenstein | 2001-05-08 |
| 6198105 | Miniature ionization gauge utilizing multiple ion collectors | — | 2001-03-06 |
| 6081121 | Ionization gauge and method of using and calibrating same | — | 2000-06-27 |
| 6046456 | Miniature ionization gauge utilizing multiple ion collectors | — | 2000-04-04 |
| 6025723 | Miniature ionization gauge utilizing multiple ion collectors | — | 2000-02-15 |
| 6023979 | Apparatus and methods for heat loss pressure measurement | Michael D. Borenstein | 2000-02-15 |
| 5902932 | Force balancing capacitance manometer | Wilbert Leonard Porter | 1999-05-11 |
| 5801535 | Ionization gauge and method of using and calibrating same | — | 1998-09-01 |
| 5452613 | Wide range vacuum gauge | Michael D. Borenstein | 1995-09-26 |
| 5422573 | Ionization gauge and method of using and calibrating same | Michael D. Borenstein, Paul C. Arnold | 1995-06-06 |
| 5296817 | Ionization gauge and method of using and calibrating same | Michael D. Borenstein, Paul C. Arnold | 1994-03-22 |
| 5250906 | Ionization gauge and method of using and calibrating same | Michael D. Borenstein | 1993-10-05 |
| 5128617 | Ionization vacuum gauge with emission of electrons in parallel paths | — | 1992-07-07 |
| 4636680 | Vacuum gauge | Paul C. Arnold, Stephen L. Dodgen, Craig Brainerd Van Cleve | 1987-01-13 |
| 4307323 | Vacuum gauge | Paul C. Arnold | 1981-12-22 |