Patents per Year
Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 6157015 | Microwave heating apparatus for gas chromatographic columns | David L. Walters | 2000-12-05 | $42,694,000 |
| 6093921 | Microwave heating apparatus for gas chromatographic columns | David L. Walters | 2000-07-25 | $55,697,000 |
| 6029498 | Chromatographic column for microwave heating | David L. Walters | 2000-02-29 | $43,011,000 |
| 5939614 | Chromatographic column for microwave heating | David L. Walters | 1999-08-17 | $27,113,000 |
| 5259239 | Hydrocarbon mass flow meter | — | 1993-11-09 | |
| 5103181 | Composition monitor and monitoring process using impedance measurements | John P. Watjen, Bjorn G. Bjornsen | 1992-04-07 | |
| 5056216 | Method of forming a plurality of solder connections | Marc J. Madou | 1991-10-15 | $1,937,000 |