Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7455460 | Fiber optic connector with double-clad stub fiber | Richard J. Pimpinella | 2008-11-25 |
| 6256446 | Variable optical attenuator having a linear response | Eric D. Walter, Thomas C. Olson | 2001-07-03 |
| 5189495 | Ambient light suppression for reflectance photometers | Roger D. Sonnenburg | 1993-02-23 |
| 4657398 | Simultaneous multiple wavelength photometer | — | 1987-04-14 |
| 4632559 | Optical readhead | — | 1986-12-30 |
| 4523841 | Radiant energy reradiating flow cell system and method | Walter R. Hogg | 1985-06-18 |
| 4341471 | Apparatus and method for measuring the distribution of radiant energy produced in particle investigating systems | Walter R. Hogg | 1982-07-27 |
| 4341993 | Reflector optics with impedance sensing orifice | Walter R. Hogg, William Newton | 1982-07-27 |
| 4327972 | Redirecting surface for desired intensity profile | — | 1982-05-04 |
| 4286876 | Apparatus and method for measuring scattering of light in particle detection systems | Walter R. Hogg | 1981-09-01 |
| 4199686 | Dark field illuminator and collector apparatus and method | Walter R. Hogg | 1980-04-22 |
| 4189236 | Ellipsoid-conic radiation collector and method | Walter R. Hogg | 1980-02-19 |
| 4188542 | Mirror image ellipsoid radiation collector and method | Walter R. Hogg | 1980-02-12 |
| 4188543 | Ellipsoid radiation collector apparatus and method | Walter R. Hogg | 1980-02-12 |