For the Inventor, By the Inventor

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Tucson, AZ, United States of America

Photometrics, Ltd.

USPTO Granted Patents = 15

Trademarks = 1

Forward Citations = 249

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19 inventors (with patents filed for the assignee):

Stephen L Marcus (3 out of 3 patents)

Peide Jeng (3 out of 3 patents)

Keith N Prettyjohns (3 out of 4 patents)

4. Roger W Cover (2 out of 3 patents)

5. William V Schempp (2 out of 3 patents)

6. David C Dalton (2 out of 3 patents)

7. Gary R Sims (1 out of 3 patents)

8. Emre Toker (1 out of 4 patents)

9. Derek Paul Guenther (1 out of 2 patents)

10. Mark S McKune (1 out of 1 patent)

11. Tim B Hunter (1 out of 1 patent)

12. Hans Roehrig (1 out of 2 patents)

13. Wilhelm Pfanhauser (1 out of 1 patent)

14. Richard S Aikens (1 out of 2 patents)

15. Kevin J Garcia (1 out of 4 patents)

15 patents: Sort by Forward Citations

1. 6388710 - Solid state camera with separate vacuum and sieve chambers (2002-05-14),

2. 5818571 - Apparatus with off-axis light path for characterizing the luminous (1998-10-06),

3. 5774214 - Multi-mode imaging apparatus for radiation-emitting or absorbing samples (1998-06-30),

4. 5760974 - Lens system for maximizing light collection efficiency and transmission (1998-06-02),

5. 5729336 - Apparatus and method for characterizing the luminous intensity of a lamp (1998-03-17),

6. 5594520 - Low supply voltage shutter driver (1997-01-14),

7. 5515329 - Variable-size first in first out memory with data manipulation (1996-05-07),

8. 5493332 - Modular electronic imaging system which accepts replacement solid state (1996-02-20),

9. 5386230 - Charged-coupled device camera with voltage adjustment control (1995-01-31),

10. 5371470 - Transverse filter circuit (1994-12-06),

11. 5338948 - Charge-coupled device with open gate structure (1994-08-16),

12. 5252850 - Apparatus for contouring a semiconductor, light responsive array with a (1993-10-12),

13. 5142557 - CCD and phosphor screen digital radiology apparatus and method for high (1992-08-25),

14. 5134680 - Solid state imaging apparatus with fiber optic bundle (1992-07-28),

15. 5134275 - Solid state exposuremeter (1992-07-28),

Photometrics designs and manufactures high-performance sCMOS, EMCCD and CCD camera systems for life science research. Our imaging systems provide scientists with the ability to see more from their samples, whether they are imaging fast cellular dynamics or studying high resolution processes. With a wide range of scientific microscope cameras, software, and accessories, we provide a complete imaging solution for any application. Photographics - enabling discoveries through innovation.

This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Sep 29 2026

15 Patents

#43 in Tucson, AZ

#258 in Arizona

#21,026 in US

#39,846 in the World

Tucson, AZ, United States of America

Photometrics, Ltd.

Forward Citations = 249

19 inventors:

Stephen L Marcus (3 out of 3 patents)

Peide Jeng (3 out of 3 patents)

Keith N Prettyjohns (3 out of 4 patents)

4. Roger W Cover (2 out of 3 patents)

5. William V Schempp (2 out of 3 patents)

Please report any incorrect information to [email protected]

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