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Wilmington, DE, United States of America

Quest Diagnostics Investments, Inc.

USPTO Granted Patents = 479

CIPO Patents = 7

EPO Patents = 105

Trademarks = 89

Forward Citations = 1,993

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232 inventors (with patents filed for the assignee):

Nigel J Clarke (113 out of 116 patents)

Richard E Reitz (87 out of 89 patents)

Heather R Sanders (39 out of 39 patents)

4. Maher Albitar (38 out of 50 patents)

5. Brett Holmquist (37 out of 38 patents)

6. Michael P Caulfield (27 out of 27 patents)

7. Sum Chan (22 out of 23 patents)

8. Feras Hantash (21 out of 23 patents)

9. Weimin Sun (21 out of 22 patents)

10. Mildred M Goldman (20 out of 20 patents)

11. Scott Goldman (20 out of 22 patents)

12. Charles M Strom (20 out of 21 patents)

13. Michelle M Tabb (20 out of 22 patents)

14. Kevin Z Qu (19 out of 19 patents)

15. Maurice Exner (19 out of 21 patents)

Core Competencies:

Methylation Assay

Circulating Tumor DNA

Mass Spectrometry

Prostate Cancer Diagnosis

Genetic Copy Number Variation

Vitamin D Metabolite Detection

Insulin Quantitation

Next-Gen Sequencing

Apolipoprotein E Detection

Bacterial Vaginosis Diagnosis

Lung Cancer Translocations

Automated Analytical Analysis

479 patents: Sort by Forward Citations

1. 12460252 - MLH1 methylation assay (2025-11-04),

2. 12443915 - System and method to store and dispense immunoassay (2025-10-14),

3. 12442047 - Methods for detecting (2025-10-14),

4. D1092772 - Plunger cap for sampling apparatus (2025-09-09),

5. 12410424 - Diagnosis of prostate cancer (2025-09-09),

6. 12404556 - Compositions and methods for detecting circulating tumor DNA (2025-09-02),

7. 12394612 - Determination of antidepressants by mass spectrometry (2025-08-19),

8. 12393602 - Extraction of relevant signals from sparse data sets (2025-08-19),

9. 12378609 - Compositions and methods for detecting mutations in JAK2 nucleic acid (2025-08-05),

10. 12372539 - Quantitation of insulin by high resolution/high accuracy mass spectrometry using the 6+ multiply charged insulin ion (2025-07-29),

11. 12367163 - Analysis of amino acids in body fluid by liquid chromatography—mass spectrometry (2025-07-22),

12. 12359261 - Assay for detection of pathogenicstrains (2025-07-15),

13. 12332236 - Methods for quantitation of insulin and C-peptide (2025-06-17),

14. 12327008 - Visual presentation of multi-dimensional data sets (2025-06-10),

15. 12305241 - EML4-ALK translocations in lung cancer (2025-05-20),

Quest Diagnostics is a leading provider of diagnostic testing, information, and services. They offer a wide range of medical tests and screenings, helping patients and healthcare providers make informed decisions. With a commitment to innovation and quality, Quest Diagnostics Investments, Inc. is dedicated to improving patient care and empowering individuals to take control of their health.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

479 Patents

#15 in Wilmington, DE

#21 in Delaware

#964 in US

#1,943 in the World

Wilmington, DE, United States of America

Quest Diagnostics Investments, Inc.

Forward Citations = 1,993

232 inventors:

Nigel J Clarke (113 out of 116 patents)

Richard E Reitz (87 out of 89 patents)

Heather R Sanders (39 out of 39 patents)

4. Maher Albitar (38 out of 50 patents)

5. Brett Holmquist (37 out of 38 patents)

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