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For the Inventor, By the Inventor

Essex, United Kingdom

Donald E Clarke

This inventor holds 9 USPTO granted patents. Top assignee: British Telecommunications Public Limited Company. Active years: 1994-1998.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Donald E Clarke. Retrieved from https://idiyas.com/inventor/donald-e-clarke

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

USPTO Granted Patents = 9

% Patents Active = 100.0

Average Co-Inventor Count = 1.8

ph-index = 7

Forward Citations = 194(Granted Patents)


Location History:

  • Colchester, GB (1994 - 1995)
  • Essex, GB (1994 - 1998)

Company Filing History:

goldMedal9 out of 1,923 
 
British Telecommunications Public Limited Company
 patents

Years Active: 1994-1998

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9 patents (USPTO):Explore Patents
1. 5854701 - Passive optical network (1998-12-29),
2. 5572349 - Communications system (1996-11-05),
3. 5548432 - Passive optical network switchable between an operational mode and a (1996-08-20),
4. 5479286 - Optical fibre communications system (1995-12-26),
5. 5453988 - Passive optical network (1995-09-26),
6. 5453865 - Monitoring system (1995-09-26),
7. 5367394 - Test apparatus (1994-11-22),
8. 5353143 - Optical receiver (1994-10-04),
9. 5341365 - Passive optical network (1994-08-23),

Title: The Innovations of Donald E Clarke

Introduction

Donald E Clarke is a notable inventor based in Essex, GB. He has made significant contributions to the field of telecommunications, holding a total of 9 patents. His work primarily focuses on passive optical networks and communications systems, showcasing his expertise in advanced networking technologies.

Latest Patents

One of Clarke's latest patents involves a passive optical network system designed to transmit downstream TDMA frames and receive upstream TDMA frames. This system includes a head-end station that comprises a TDMA master and multiple optical stages connected to different fiber networks. The TDMA master assembles incoming data into downstream frames and demultiplexes upstream frames, enhancing the efficiency of data transmission.

Another significant patent pertains to a communications system that features a line terminal and several customer terminals. This system supports traffic between the line terminal and customer terminals, utilizing time domain multiplexing for efficient data handling. Each customer terminal is equipped with service units for both narrow and wide bandwidth traffic, ensuring optimal performance in data communication.

Career Highlights

Donald E Clarke has had a distinguished career at British Telecommunications Public Limited Company. His innovative work has not only advanced the company's technological capabilities but has also contributed to the broader telecommunications industry. His patents reflect a deep understanding of the complexities involved in modern communication systems.

Collaborations

Throughout his career, Clarke has collaborated with notable colleagues, including Michael A Hale and Jeremy B Chuter. These partnerships have fostered a collaborative environment that encourages innovation and the development of cutting-edge technologies.

Conclusion

Donald E Clarke's contributions to telecommunications through his patents and collaborative efforts have significantly impacted the industry. His work continues to influence advancements in communication technologies, making him a key figure in the field.

Profile summary based on public USPTO records.
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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