Wilmington, DE, United States of America

Quest Diagnostics Investments Incoporated

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USPTO Granted Patents = 5

Forward Citations = 30

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8 inventors (with patents filed for the assignee):

Nigel J Clarke (3 out of 118 patents)

Richard E Reitz (2 out of 91 patents)

Scott Goldman (2 out of 22 patents)

4. Brett Holmquist (1 out of 39 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),

Company Overview

Quest Diagnostics Investments Incorporated is a leading provider of diagnostic information services, offering a wide range of laboratory testing and related services. The company focuses on improving patient health through innovative testing solutions and advanced technologies. With a commitment to quality and accuracy, Quest Diagnostics serves healthcare providers, patients, and pharmaceutical companies, facilitating better healthcare decisions. The company operates a vast network of laboratories and patient service centers, ensuring accessibility and convenience for its clients. Quest Diagnostics is dedicated to advancing the field of diagnostics and enhancing patient care through continuous improvement and innovation.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

5 Patents

#531 in Wilmington, DE

#737 in Delaware

#51,669 in US

Wilmington, DE, United States of America