Gersan Establishment
Patent Applications and Registrations
Patent applications and USPTO patent grants for Gersan Establishment.The latest application filed is for "marking diamond".
- Gersan Establishment - Liechtenstein DE
- Gersan Establishment - Vaduz LI
- Gersan Establishment - LI LI
Trademarks
| Patent | Date |
|---|---|
| Marking diamond Grant 6,187,213 - Smith , et al. February 13, 2 | 2001-02-13 |
| Apparatus for viewing gemstones Grant D427,617 - Brown July 4, 2 | 2000-07-04 |
| Method and apparatus for examining an object Grant 5,835,200 - Smith , et al. November 10, 1 | 1998-11-10 |
| Method and an apparatus for testing whether a diamond has a layer of synthetic diamond deposited thereon Grant 5,811,824 - Smith , et al. September 22, 1 | 1998-09-22 |
| Detecting diamonds in a rock sample Grant 5,603,414 - Rooney , et al. February 18, 1 | 1997-02-18 |
| Optical inspection method and apparatus Grant 5,353,112 - Smith October 4, 1 | 1994-10-04 |
| Sensing a narrow frequency band of radiation and gemstones Grant 5,206,699 - Stewart , et al. April 27, 1 | 1993-04-27 |
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