Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11567944 | Processing of sequencing data streams | James Ferguson, Dennis Bunadi | 2023-01-31 |
| 9266066 | Membrane with localized asymmetries | Geoffrey P. LaRue, Xiaosong Wu | 2016-02-23 |
| 6396866 | Symmetric chirp communications acquisition method and apparatus | Eric L. Upton, Kenneth L. Brown, Thomas J. Kolze | 2002-05-28 |
| 6331708 | Examining a diamond | — | 2001-12-18 |
| 6167024 | Multiple channel control using orthogonally modulated coded drive signals | Eric L. Upton, Michael G. Wickham | 2000-12-26 |
| 6014208 | Examining a diamond | Christopher M. Welbourn, James Gordon Charters Smith, Paul Martyn Spear, Philip Maurice Martineau, Martin Cooper | 2000-01-11 |
| 5883388 | Examining a diamond | James Gordon Charters Smith, Martin Cooper, Ricardo Simon Sussmann | 1999-03-16 |
| 5880504 | Examining a diamond | James Gordon Charters Smith, Martin Cooper, Christopher M. Welbourn, Philip Maurice Martineau | 1999-03-09 |
| 5835200 | Method and apparatus for examining an object | Robin W. Smith, Christopher M. Welbourn | 1998-11-10 |
| 5811824 | Method and an apparatus for testing whether a diamond has a layer of synthetic diamond deposited thereon | James Gordon Charters Smith, Martin Cooper | 1998-09-22 |
| 5628410 | Classifying or sorting | Robin W. Smith | 1997-05-13 |
| 5603414 | Detecting diamonds in a rock sample | Marie-Line Rooney, James Gordon Charters Smith, Martin Cooper | 1997-02-18 |
| 5536943 | Method and apparatus for examining an object | Christopher M. Welbourn | 1996-07-16 |
| 5505313 | Method and apparatus for detecting diamonds in a plurality of objects | Robin W. Smith | 1996-04-09 |
| 5353112 | Optical inspection method and apparatus | — | 1994-10-04 |
| 5351117 | Sensing a narrow frequency band and gemstones | Andrew D. G. Stewart, Robin W. Smith, Martin Cooper, Christopher M. Welbourn, Paul Martyn Spear | 1994-09-27 |
| 5206699 | Sensing a narrow frequency band of radiation and gemstones | Andrew D. G. Stewart, Robin W. Smith, Daniel J. Brink, Martin Cooper, Christopher M. Welbourn +1 more | 1993-04-27 |
| 5076698 | Sensing the shape of an object | Robin W. Smith | 1991-12-31 |
| 5010247 | Method of classifying objects according to shape | Colin D. Saunders | 1991-04-23 |
| 4663522 | Integrating sphere device for measuring transmission of light in objects | Christopher M. Welbourn | 1987-05-05 |
| 4645922 | Integrating sphere arrangement for producing size-corrected color signals | Christopher M. Welbourn, Andrew D. G. Stewart | 1987-02-24 |