% Expired Patents = 25.0

Forward Citations = 67

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5 inventors (with patents filed for the assignee):

Charles Farley (2 out of 7 patents)

Craig Hefner (2 out of 3 patents)

David K Diffee (1 out of 1 patent)

4. Bill L Christensen (1 out of 1 patent)

5. Charles W Conklin (1 out of 2 patents)

4 patents: Sort by Forward Citations

1. 7854324 - Shipping carrier (2010-12-21),

2. 7128509 - Shipping carrier (2006-10-31),

3. 5152489 - Removable accessory tray for golf bag cart and method therefore (1992-10-06),

4. 4274034 - Glow plug driver (1981-06-16),

Company Overview

C & D Enterprises, Inc. is a leading provider of industrial machinery and equipment. With a strong reputation for quality products and excellent customer service, we have been serving clients in the manufacturing and construction industries for over 20 years. Our extensive inventory includes a wide range of machinery to meet the needs of various businesses. From metalworking equipment to material handling solutions, we offer reliable products at competitive prices. Contact us today for all your industrial equipment needs.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

4 Patents

#88 in Auburn Hills, MI

#2,023 in Michigan

#60,641 in US

Auburn Hills, MI, United States of America

C & D Enterprises, Inc.

Forward Citations = 67

5 inventors:

Charles Farley (2 out of 7 patents)

Craig Hefner (2 out of 3 patents)

David K Diffee (1 out of 1 patent)

4. Bill L Christensen (1 out of 1 patent)

5. Charles W Conklin (1 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: C & D Enterprises, Inc.. Retrieved from https://idiyas.com/company/c-and-d-enterprises

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]