Rpost International Limited

Calculating rank

USPTO Granted Patents = 12

% Expired Patents = 33.3

CIPO Patents = 4

EPO Patents = 2

Trademarks = 8

Forward Citations = 677

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2 inventors (with patents filed for the assignee):

Terrance A Tomkow (8 out of 25 patents)

Terrence A Tomkow (4 out of 4 patents)

Zafar D Khan (2 out of 15 patents)

12 patents: Sort by Forward Citations

1. 8478981 - Method of adding a postscript message to an email (2013-07-02),

2. 8468199 - System and method for verifying delivery and integrity of electronic messages (2013-06-18),

3. 8468198 - System and method for verifying delivery and integrity of electronic messages (2013-06-18),

4. 8275845 - System and method for verified contract acceptance (2012-09-25),

5. 8161104 - System and method for verifying delivery and integrity of electronic messages (2012-04-17),

6. 7966372 - System and method for verifying delivery and integrity of electronic messages (2011-06-21),

7. 7886008 - System and method for verifying delivery and integrity of electronic messages (2011-02-08),

8. 7865557 - System and method for verifying delivery and integrity of electronic messages (2011-01-04),

9. 7707624 - System for, and method of, proving the transmission, receipt and content of a reply to an electronic message (2010-04-27),

10. 7698558 - System for, and method of, providing the transmission, receipt and content of an e-mail message (2010-04-13),

11. 7660989 - System for, and method of, authenticating an electronic message to a recipient (2010-02-09),

12. 7240199 - System and method for verifying delivery and integrity of electronic messages (2007-07-03),

Company Overview

Rpost International Limited specializes in secure email solutions, focusing on enhancing the integrity and security of electronic communications. The company is known for its innovative technologies that provide proof of delivery, email encryption, and digital signatures, catering to businesses that require reliable and verifiable communication methods. Headquartered in Pembroke, Bermuda, Rpost serves a global clientele, ensuring compliance and security in digital correspondence across various industries.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Nov 10 2026

12 Patents

#4 in Pembroke

#44 in Bermuda

#48,334 in the World

Pembroke, Bermuda

Rpost International Limited

Forward Citations = 677

2 inventors:

Terrance A Tomkow (8 out of 25 patents)

Terrence A Tomkow (4 out of 4 patents)

Zafar D Khan (2 out of 15 patents)

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

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]

4 patents (CIPO):

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]

2 patents (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]