For the Inventor, By the Inventor

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Eden Prairie, MN, United States of America

Birchwood Laboratories, Inc.

USPTO Granted Patents = 18

% Expired Patents = 11.1

Trademarks = 53

Forward Citations = 386

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15 inventors (with patents filed for the assignee):

William V Block (13 out of 17 patents)

Bryce D Devine (6 out of 6 patents)

Keith N Ravenscroft (5 out of 5 patents)

4. David J Halverson (3 out of 3 patents)

5. John T Nguyen (1 out of 1 patent)

6. John Thanh Ngoc Nguyen (1 out of 1 patent)

7. A W Edwards (1 out of 3 patents)

8. Michael D Lenarz (1 out of 1 patent)

9. James N Tuttle, Jr (1 out of 1 patent)

10. Richard K Williams (1 out of 1 patent)

11. Nathan R Erickson (1 out of 1 patent)

12. Cydney A Einck (1 out of 1 patent)

13. Gary A Messer (1 out of 1 patent)

14. Ross Eric Haugberg (1 out of 1 patent)

15. Zach D Johnson (1 out of 1 patent)

18 patents: Sort by Forward Citations

1. 12497684 - Methods and compositions for forming magnetite coatings on ferrous metals (2025-12-16),

2. 9039821 - Methods and compositions for coating aluminum substrates (2015-05-26),

3. D717960 - Electrode set (2014-11-18),

4. 8691346 - Methods and compositions for coating aluminum substrates (2014-04-08),

5. 8287663 - Ferrous metal magnetite coating processes and reagents (2012-10-16),

6. 7964044 - Ferrous metal magnetite coating processes and reagents (2011-06-21),

7. 7625439 - Bath composition for converting surface of ferrous metal to mixed oxides and organometallic compounds of aluminum and iron (2009-12-01),

8. 7481872 - Process for making bath composition for converting surface of ferrous metal to mixed oxides and organometallic compounds of aluminum and iron (2009-01-27),

9. 7144599 - Hybrid metal oxide/organometallic conversion coating for ferrous metals (2006-12-05),

10. 6899956 - Metal coloring process and solutions therefor (2005-05-31),

11. 6899769 - Composition and method for metal coloring process (2005-05-31),

12. 6695931 - Composition and method for metal coloring process (2004-02-24),

13. 6576346 - Composition and method for metal coloring process (2003-06-10),

14. 6527873 - Composition and method for metal coloring process (2003-03-04),

15. 6309476 - Composition and method for metal coloring process (2001-10-30),

Company Overview

Birchwood Laboratories, Inc. is a specialized manufacturer based in Eden Prairie, Minnesota, focusing on advanced solutions for the medical and industrial sectors. The company is known for its expertise in developing high-performance coatings, cleaning products, and testing solutions that enhance product performance and safety. With a commitment to innovation, Birchwood Laboratories leverages its research capabilities to address the evolving needs of its clients, ensuring reliability and quality across its diverse product offerings.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

18 Patents

#43 in Eden Prairie, MN

#537 in Minnesota

#17,974 in US

#34,244 in the World

Eden Prairie, MN, United States of America

Birchwood Laboratories, Inc.

Forward Citations = 386

15 inventors:

William V Block (13 out of 17 patents)

Bryce D Devine (6 out of 6 patents)

Keith N Ravenscroft (5 out of 5 patents)

4. David J Halverson (3 out of 3 patents)

5. John T Nguyen (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Birchwood Laboratories, Inc.. Retrieved from https://idiyas.com/company/birchwood-laboratories

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]

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