% Expired Patents = 55.6

EPO Patents = 1

Forward Citations = 32

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4 inventors (with patents filed for the assignee):

George Barbulescu (3 out of 5 patents)

Lanny Green (3 out of 3 patents)

Brian M Singleton (2 out of 2 patents)

4. John MacGregor (1 out of 2 patents)

9 patents: Sort by Forward Citations

1. 7019247 - Electrical discharge machine apparatus with piezo-electric head (2006-03-28),

2. 6734384 - Electrical discharge machine apparatus with improved dielectric flushing (2004-05-11),

3. 6568885 - Machining cell with debris shields (2003-05-27),

4. 6558609 - Blow molding machine and a method of blow molding a hollow article (2003-05-06),

5. 6508643 - Rotary blow molding machine (2003-01-21),

6. 6457918 - Machining cell with debris shields (2002-10-01),

7. 6447225 - Spindle assembly drive (2002-09-10),

8. 5951883 - Floating cover electrode guide system for electric discharge machining (1999-09-14),

9. 5908563 - Side bore electrode retention device for electric discharge machining (1999-06-01),

Company Overview

Ann Arbor Machine Company is a leading provider of precision machining services, specializing in prototype development, low to high volume production, and contract manufacturing. With over 50 years of experience, we offer a full range of capabilities to meet the needs of industries such as automotive, aerospace, and medical devices. Our state-of-the-art facility and team of skilled machinists ensure top-quality products delivered on time and within budget.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

9 Patents

#1 in Chelsea, MI

#1,117 in Michigan

#32,605 in US

Chelsea, MI, United States of America

Ann Arbor Machine Company

Forward Citations = 32

4 inventors:

George Barbulescu (3 out of 5 patents)

Lanny Green (3 out of 3 patents)

Brian M Singleton (2 out of 2 patents)

4. John MacGregor (1 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ann Arbor Machine Company. Retrieved from https://idiyas.com/company/ann-arbor-machine-company

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]

1 patent (EPO):

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]