Forward Citations = 184

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7 inventors (with patents filed for the assignee):

Albert F Ditzig (7 out of 33 patents)

Jeffrey M Morris (3 out of 19 patents)

Ming-Shih Kao (2 out of 2 patents)

4. Michael Hirsch (1 out of 1 patent)

5. Yong R Chu (1 out of 1 patent)

6. Albert Ditzig (1 out of 1 patent)

7. Mark Ditzig (1 out of 1 patent)

12 patents: Sort by Forward Citations

1. 6484425 - Fluid display cover assembly (2002-11-26),

2. D458830 - Winding apparatus for storing computer telephone cords (2002-06-19),

3. D458534 - Winding apparatus for storing computer telephone cords (2002-06-12),

4. 6235990 - Modular retractile telephone cords (2001-05-22),

5. D355891 - Telephone cord rotary connector (1995-02-28),

6. D338654 - Telephone cord rotary connector (1993-08-24),

7. D325594 - Desktop decision maker novelty (1992-04-21),

8. 5106306 - Rotary electrical connector with remote modular connector (1992-04-21),

9. D321503 - Rotary electrical connector (1991-11-12),

10. 4854881 - Rotary electrical connector assembly (1989-08-08),

11. 4764121 - Rotary electrical connector (1988-08-16),

12. 4673228 - Rotary electrical connector apparatus (1987-06-16),

Company Overview

Telephone Products, Inc. is a specialized manufacturer based in Wheeling, Illinois, focusing on innovative telecommunications solutions. The company develops a range of products designed to enhance communication efficiency and reliability, catering to both commercial and residential markets. With a commitment to quality and technological advancement, Telephone Products, Inc. plays a significant role in the telecommunications industry, providing essential tools that support connectivity and communication needs across various sectors.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

12 Patents

#20 in Wheeling, IL

#1,255 in Illinois

#25,557 in US

#48,163 in the World

Wheeling, IL, United States of America

Telephone Products, Inc.

Forward Citations = 184

7 inventors:

Albert F Ditzig (7 out of 33 patents)

Jeffrey M Morris (3 out of 19 patents)

Ming-Shih Kao (2 out of 2 patents)

4. Michael Hirsch (1 out of 1 patent)

5. Yong R Chu (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Telephone Products, Inc.. Retrieved from https://idiyas.com/company/telephone-products

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]