Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6837106 | Gravity gradiometry | John B. French, Bjarni Tryggvason, Frank Joachim Van Kann | 2005-01-04 |
| 5969352 | Spray chamber with dryer | John B. French, Raymond Jong, Guy Legere | 1999-10-19 |
| 5684581 | Torch for inductively coupled plasma spectrometry | John B. French, Raymond Jong | 1997-11-04 |
| 5345079 | Apparatus and method for liquid sample introduction | John B. French | 1994-09-06 |
| 5167572 | Air curtain fume cabinet and method | — | 1992-12-01 |
| 4657667 | Particle classifier | — | 1987-04-14 |
| 4213852 | Method and apparatus for particle classification | — | 1980-07-22 |