For the Inventor, By the Inventor

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Wilmington, DE, United States of America

Quest Diagnostics Investments Incoporated

USPTO Granted Patents = 5

Forward Citations = 29

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8 inventors (with patents filed for the assignee):

Nigel J Clarke (3 out of 116 patents)

Richard E Reitz (2 out of 89 patents)

Scott Goldman (2 out of 22 patents)

4. Brett Holmquist (1 out of 38 patents)

5. Julie A Neidich (1 out of 7 patents)

6. Shijun Sheng (1 out of 5 patents)

7. Darren J Weber (1 out of 40 patents)

8. Cory Bystrom (1 out of 1 patent)

5 patents: Sort by Forward Citations

1. 12493049 - Quantitation of insulin-like growth factor-I and insulin-like growth factor-II with high-resolution mass spectrometry (2025-12-09),

2. 11361953 - Apolipoprotein E isotype detection by mass spectrometry (2022-06-14),

3. 11181537 - Mass spectrometric determination of eicosapentaenoic acid and docosahexaenoic acid (2021-11-23),

4. 11017991 - Mass spectrometric determination of fatty acids (2021-05-25),

5. 7977117 - Vitamin D metabolite determination utilizing mass spectrometry following derivatization (2011-07-12),

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USPTO Data Jan 1 1976 - Dec 30 2025

5 Patents

#497 in Wilmington, DE

#696 in Delaware

#50,234 in US

Wilmington, DE, United States of America

Quest Diagnostics Investments Incoporated

Forward Citations = 29

8 inventors:

Nigel J Clarke (3 out of 116 patents)

Richard E Reitz (2 out of 89 patents)

Scott Goldman (2 out of 22 patents)

4. Brett Holmquist (1 out of 38 patents)

5. Julie A Neidich (1 out of 7 patents)

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