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Pembroke, Bermuda

Rpost Communications Limited

USPTO Granted Patents = 13

% Expired Patents = 38.5

Trademarks = 7

Forward Citations = 170

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2 inventors (with patents filed for the assignee):

Terrance A Tomkow (13 out of 25 patents)

Zafar D Khan (1 out of 11 patents)

13 patents: Sort by Forward Citations

1. 10887271 - System and method for verifying delivery and integrity of electronic messages (2021-01-05),

2. 9596194 - System and method for verifying delivery and integrity of electronic messages (2017-03-14),

3. 9531732 - Computer implemented system and method for authenticating a sender of electronic data to a recipient (2016-12-27),

4. 9432313 - System and method for verifying delivery and integrity of electronic messages (2016-08-30),

5. 9160725 - Computer implemented system and method for authenticating a sender of electronic data to a recipient (2015-10-13),

6. 9100356 - Method of adding a postscript message to an email (2015-08-04),

7. 9100355 - System for, and method of, providing the transmission, receipt and content of a reply to an electronic message (2015-08-04),

8. 8782415 - System for, and method of, providing the transmission, receipt and content of an E-mail message to a recipient (2014-07-15),

9. 8782154 - System and method for verifying delivery and integrity of electronic messages (2014-07-15),

10. 8504628 - System and method for verifying delivery and integrity of electronic messages (2013-08-06),

11. 8484706 - System for, and method of, providing the transmission, receipt and content of a reply to an electronic message (2013-07-09),

12. 8224913 - System and method for verifying delivery and integrity of electronic messages (2012-07-17),

13. 8209389 - System and method for verifying delivery and integrity of electronic messages (2012-06-26),

Company Overview

Rpost Communications Limited specializes in secure email services, focusing on enhancing the integrity and confidentiality of digital communications. The company is known for its innovative solutions that provide proof of delivery, email encryption, and electronic signatures, catering to businesses seeking to protect sensitive information. With a strong emphasis on compliance and security, Rpost operates primarily in the technology sector, serving clients across various industries globally.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

13 Patents

#3 in Pembroke

#43 in Bermuda

#45,081 in the World

Pembroke, Bermuda

Rpost Communications Limited

Forward Citations = 170

2 inventors:

Terrance A Tomkow (13 out of 25 patents)

Zafar D Khan (1 out of 11 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Rpost Communications Limited. Retrieved from https://idiyas.com/company/rpost-communications

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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