Signal Hill, CA, United States of America

Gregg Drilling, LLC

Calculating rank

USPTO Granted Patents = 6

Forward Citations = 3

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4 inventors (with patents filed for the assignee):

John N Gregg (5 out of 54 patents)

Matthew Schubert (4 out of 4 patents)

Phillip Schubert (4 out of 4 patents)

4. Ronald Boggess (1 out of 2 patents)

6 patents: Sort by Forward Citations

1. 12366126 - Geotechnical rig systems and methods (2025-07-22),

2. 11970916 - Geotechnical rig systems and methods (2024-04-30),

3. 11738379 - Injection remediation systems and methods (2023-08-29),

4. 11643886 - Geotechnical rig systems and methods (2023-05-09),

5. 11473378 - Geotechnical rig systems and methods (2022-10-18),

6. 10392880 - Small footprint coiled tubing apparatus (2019-08-27),

Company Overview

Gregg Drilling is a leading geotechnical and environmental drilling company serving clients throughout California and the Western United States. With over 30 years of experience, Gregg Drilling offers a wide range of drilling services, including environmental sampling, in-situ testing, and geotechnical investigations. They are known for their expertise, professionalism, and commitment to delivering accurate and reliable results.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

6 Patents

#8 in Signal Hill, CA

#10,583 in California

#45,030 in US

Signal Hill, CA, United States of America