Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6882701 | X-ray fluorescence system and method | Frank H. Ferrandino, Weimin Si, Douglas S. Holmes | 2005-04-19 |
| 6728351 | Access control system having tenant codes that may be selectively displayed | John F. Ahlstrom | 2004-04-27 |
| 6345086 | X-ray fluorescence system and method | Frank H. Ferrandino, Weimin Si, Douglas S. Holmes | 2002-02-05 |
| 4778693 | Photolithographic mask repair system | Zbigniew Drozdowicz, John Vogler | 1988-10-18 |
| 4507789 | YAG Laser system | Richard T. Daly, Walter Rhoades, Robert A. Kaplan | 1985-03-26 |
| 4213036 | Method for classifying biological cells | Richard E. Kopp, Joseph Lisa, Jay Mendelsohn, Benjamin J. Pernick, Martin R. Wohlers | 1980-07-15 |