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For the Inventor, By the Inventor

Liechtenstein, United States of America

Gersan Establishment


USPTO Granted Patents = 25


Forward Citations = 282

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38 inventors (with patents filed for the assignee):

goldMedal Martin P Smith (13 out of 17 patents)

silverMedal Martin Cooper (8 out of 9 patents)

bronzeMedal Christopher M Welbourn (8 out of 11 patents)

4.  James Gordon Smith (5 out of 5 patents)

5.  Robin W Smith (5 out of 7 patents)

6.  Paul Martyn Spear (4 out of 7 patents)

7.  James Gordon Charters Smith (3 out of 12 patents)

8.  Michael Peter Gaukroger (2 out of 7 patents)

9.  Philip Maurice Martineau (2 out of 26 patents)

10.  Andrew D Stewart (2 out of 11 patents)

11.  Timothy James Osgood (2 out of 2 patents)

12.  David Antony Homer (2 out of 4 patents)

13.  Graham Maurice Brown (2 out of 2 patents)

14.  Martin Philip Gouch (1 out of 43 patents)

15.  Graham Ralph Powell (1 out of 4 patents)


25 patents:

1. D460470 - Viewer for gemstones (2002-07-17),
2. 6391215 - Diamond marking (2002-05-21),
3. 6358427 - Marking diamond (2002-03-19),
4. 6331708 - Examining a diamond (2001-12-18),
5. 6187213 - Marking diamond (2001-02-13),
6. D427617 - Apparatus for viewing gemstones (2000-07-04),
7. 6014208 - Examining a diamond (2000-01-11),
8. 5883388 - Examining a diamond (1999-03-16),
9. 5880504 - Examining a diamond (1999-03-09),
10. 5835200 - Method and apparatus for examining an object (1998-11-10),
11. 5811824 - Method and an apparatus for testing whether a diamond has a layer of (1998-09-22),
12. 5801819 - Distinguishing natural from synthetic diamond (1998-09-01),
13. 5746645 - Working a natural or synthetic hard stone such as a gemstone (1998-05-05),
14. 5628410 - Classifying or sorting (1997-05-13),
15. 5603414 - Detecting diamonds in a rock sample (1997-02-18),
Gersan Establishment is a leading provider of electrical solutions, offering a wide range of products including energy distribution panels, switches, sockets, and lighting fixtures. With over 30 years of experience, Gersan has built a reputation for quality and reliability in the industry. Their products are used in homes, offices, and industrial settings worldwide.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 9 2025

25 Patents

#1 in Liechtenstein, undefined

#63 in

#489 in US

#24,910 in the World

...
Liechtenstein, United States of America

Gersan Establishment

Forward Citations = 282

38 inventors:

goldMedal Martin P Smith (13 out of 17 patents)

silverMedal Martin Cooper (8 out of 9 patents)

bronzeMedal Christopher M Welbourn (8 out of 11 patents)

4.  James Gordon Smith (5 out of 5 patents)

5.  Robin W Smith (5 out of 7 patents)

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