For the Inventor, By the Inventor

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Sarasota, FL, United States of America

World Precision Instruments, Inc.

USPTO Granted Patents = 22

% Expired Patents = 13.6

Trademarks = 2

Forward Citations = 1,046

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21 inventors (with patents filed for the assignee):

Su Yi Liu (8 out of 8 patents)

Harry Fein (6 out of 6 patents)

Mathias Belz (4 out of 4 patents)

4. Su-Yi Liu (3 out of 3 patents)

5. Diping Che (2 out of 2 patents)

6. Peter Dress (1 out of 10 patents)

7. Purnendu K Dasgupta (1 out of 42 patents)

8. Valentin Zhelyaskov (1 out of 15 patents)

9. Xueji Zhang (1 out of 3 patents)

10. Konrad Güth (1 out of 1 patent)

11. Harm J Knot (1 out of 1 patent)

12. Guoming Guan (1 out of 1 patent)

13. Richard L Miller (1 out of 1 patent)

14. Karl Friedrich (1 out of 1 patent)

15. Guo Chen Liu (1 out of 1 patent)

22 patents: Sort by Forward Citations

1. 11686931 - Three-dimensional viewing device (2023-06-27),

2. 8915143 - Combination ultrasensitive force transducer and grabbing device for force and strain measurement from single cells (2014-12-23),

3. 8189196 - Self referencing LED detection system for spectroscopy applications (2012-05-29),

4. 7914852 - High temperature coating techniques for amorphous fluoropolymers (2011-03-29),

5. 6926867 - Pipette piston seal assembly (2005-08-09),

6. 6749834 - Methods and apparatus for therapeutic treatment of respiratory, cardiac and other pathologies (2004-06-15),

7. 6603556 - Photometric detection system having multiple path length flow cell (2003-08-05),

8. 6385380 - Hollow optical waveguide for trace analysis in aqueous solutions (2002-05-07),

9. 6104485 - Method and apparatus for optical measurement of very small fluid samples (2000-08-15),

10. 6020207 - Optical analysis technique and sensors for use therein (2000-02-01),

11. 6016372 - Chemical sensing techniques employing liquid-core optical fibers (2000-01-18),

12. 6011882 - Chemical sensing techniques employing liquid-core optical fibers (2000-01-04),

13. 5980036 - Eyeglass devices with removable auxiliary lenses or frames (1999-11-09),

14. 5827420 - Method and apparatus for the generation of nitric oxide (1998-10-27),

15. 5636303 - Filterless chromatically variable light source (1997-06-03),

World Precision Instruments, Inc. is a leading supplier of high-quality laboratory equipment and supplies for the life sciences and biomedical research industries. With a focus on precision, reliability, and innovation, WPI offers a wide range of products including microinjection systems, electrophysiology equipment, and surgical instruments. Founded in 1967, WPI has built a strong reputation for providing cutting-edge solutions to researchers around the world.

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

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USPTO Data Jan 1 1976 - Sep 15 2026

22 Patents

#12 in Sarasota, FL

#388 in Florida

#15,001 in US

#28,690 in the World

Sarasota, FL, United States of America

World Precision Instruments, Inc.

Forward Citations = 1,046

21 inventors:

Su Yi Liu (8 out of 8 patents)

Harry Fein (6 out of 6 patents)

Mathias Belz (4 out of 4 patents)

4. Su-Yi Liu (3 out of 3 patents)

5. Diping Che (2 out of 2 patents)

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