For the Inventor, By the Inventor

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Emeryville, CA, United States of America

Rainin Instrument Co., Inc.

USPTO Granted Patents = 48

Trademarks = 3

Forward Citations = 1,696

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20 inventors (with patents filed for the assignee):

Kenneth Rainin (23 out of 33 patents)

James S Petrek (17 out of 43 patents)

Christopher F Kelly (14 out of 24 patents)

4. Haakon T Magnussen (11 out of 19 patents)

5. William D Homberg (9 out of 21 patents)

6. Stephen J Ruskewicz (6 out of 19 patents)

7. Roy P Moeller (5 out of 7 patents)

8. David J Lemieux (5 out of 6 patents)

9. Kent Gordon Moriarty (4 out of 5 patents)

10. Steven T Nielsen (4 out of 6 patents)

11. Gary L Smith (4 out of 5 patents)

12. Carl L Shackelford (4 out of 9 patents)

13. Anthony K Wingo (3 out of 3 patents)

14. Haakon T Magnussen, Jr (3 out of 11 patents)

15. Paul K Chadwick (2 out of 3 patents)

48 patents: Sort by Forward Citations

1. 6299841 - Bilaterally symmetrical battery powered microprocessor controlled lightweight hand-holdable electronic pipette (2001-10-09),

2. D448853 - Pipette tip (2001-10-03),

3. D446864 - Pipette tip (2001-08-22),

4. 6254832 - Battery powered microprocessor controlled hand portable electronic pipette (2001-07-03),

5. 6248295 - Pipette with improved pipette tip and mounting shaft combination (2001-06-19),

6. D441458 - Pipette tip (2001-05-02),

7. D439986 - Pipette tip (2001-04-04),

8. D438981 - Pipette tip (2001-03-14),

9. 6197259 - Easy eject pipette tip (2001-03-06),

10. D437940 - Pipette tip (2001-02-21),

11. 6171553 - Pipette with improved pipette tip and mounting shaft (2001-01-09),

12. 6168761 - Pipette with improved pipette tip and mounting shaft (2001-01-02),

13. D426643 - Manual pipette (2000-06-13),

14. D426642 - Electronic pipette (2000-06-13),

15. 6045757 - Membrane filter pipette tip (2000-04-04),

Rainin Instrument Co., Inc. is a leading provider of precision liquid handling solutions for the life sciences industry. With a strong commitment to innovation and quality, Rainin offers a wide range of pipettes, tips, and accessories to meet the needs of researchers and scientists worldwide. Established in 1974, the company continues to set industry standards for accuracy, reliability, and ease of use.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

48 Patents

#13 in Emeryville, CA

#1,667 in California

#7,024 in US

#14,104 in the World

Emeryville, CA, United States of America

Rainin Instrument Co., Inc.

Forward Citations = 1,696

20 inventors:

Kenneth Rainin (23 out of 33 patents)

James S Petrek (17 out of 43 patents)

Christopher F Kelly (14 out of 24 patents)

4. Haakon T Magnussen (11 out of 19 patents)

5. William D Homberg (9 out of 21 patents)

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