Trademarks = 13

Forward Citations = 110

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8 inventors (with patents filed for the assignee):

Henry B Castaneda (7 out of 7 patents)

Gordon A Rampy (3 out of 3 patents)

G Neil Spokes (2 out of 2 patents)

4. Edgar Watson, Jr (1 out of 2 patents)

5. Franklyn M Rybak (1 out of 2 patents)

6. Teresa A Neale (1 out of 1 patent)

7. Rame Bull (1 out of 1 patent)

8. Thomas J Chipley (1 out of 1 patent)

9 patents: Sort by Forward Citations

1. 5646736 - Analytical apparatus with coded elements (1997-07-08),

2. 5423440 - Ampule for chemical oxygen demand test (1995-06-13),

3. D327027 - Portable analytical instrument or similar article (1992-06-16),

4. 5013155 - Portable spectrophotometric instrument having vial holder and light (1991-05-07),

5. 4920057 - Method for colorimetric analysis of metals (1990-04-24),

6. 4876068 - Test kit for colorimetric analysis (1989-10-24),

7. 4596780 - Process for sampling and diluting (1986-06-24),

8. 4537747 - Disposable device for sampling and diluting (1985-08-27),

9. 4332769 - Disposable titration device (1982-06-01),

Company Overview

Chemetrics, Inc. is a leading provider of water testing solutions for industrial, municipal, and laboratory applications. With over 50 years of experience, Chemetrics offers a wide range of test kits, reagents, and instruments for measuring various water parameters such as chlorine, pH, and hardness. The company is known for its high-quality products, reliable results, and excellent customer service.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

9 Patents

#1 in Calverton, VA

#576 in Virginia

#32,588 in US

Calverton, VA, United States of America

Chemetrics, Inc.

Forward Citations = 110

8 inventors:

Henry B Castaneda (7 out of 7 patents)

Gordon A Rampy (3 out of 3 patents)

G Neil Spokes (2 out of 2 patents)

4. Edgar Watson, Jr (1 out of 2 patents)

5. Franklyn M Rybak (1 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Chemetrics, Inc.. Retrieved from https://idiyas.com/company/chemetrics

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]