Issued Patents All Time
Showing 26–39 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7142311 | Methods and systems for determining optical properties using low-coherence interference signals | — | 2006-11-28 |
| 7126698 | Measurement of complex surface shapes using a spherical wavefront | Peter De Groot | 2006-10-24 |
| 7106454 | Profiling complex surface structures using scanning interferometry | Peter De Groot, Robert Stoner | 2006-09-12 |
| 7102761 | Scanning interferometry | David Grigg, Peter De Groot | 2006-09-05 |
| 7046371 | Interferometer having a coupled cavity geometry for use with an extended source | Peter De Groot | 2006-05-16 |
| 7030996 | Measurement of complex surface shapes using a spherical wavefront | Peter De Groot | 2006-04-18 |
| 7023562 | Characterization of period variations in diffraction gratings | — | 2006-04-04 |
| 7012700 | Interferometric optical systems having simultaneously scanned optical path length and focus | Peter De Groot, Senthil Balasubramaniam | 2006-03-14 |
| 6822745 | Optical systems for measuring form and geometric dimensions of precision engineered parts | Peter De Groot, David Grigg, James F. Biegen | 2004-11-23 |
| 6714307 | Measurement of complex surface shapes using a spherical wavefront | Peter De Groot | 2004-03-30 |
| 6597460 | Height scanning interferometer for determining the absolute position and surface profile of an object with respect to a datum | Peter Groot, Leslie L. Deck, James William KRAMER | 2003-07-22 |
| 6226092 | Full-field geometrically desensitized interferometer using refractive optics | — | 2001-05-01 |
| 6195168 | Infrared scanning interferometry apparatus and method | Peter De Groot, Leslie L. Deck | 2001-02-27 |
| 6072581 | Geometrically-desensitized interferometer incorporating an optical assembly with high stray-beam management capability | David Stephenson | 2000-06-06 |