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% Expired Patents = 33.3

CIPO Patents = 4

EPO Patents = 2

Trademarks = 8

Forward Citations = 677

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3 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 11 patents)

4. Zafar Khan (4 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),

Rpost International Limited is a leading provider of secure and certified electronic communications solutions. Their flagship product, RMail, enables businesses to streamline and enhance their digital communications by adding security, compliance, and legal proof features to email. Rpost's trusted services are used by organizations worldwide for secure and trackable electronic document delivery, encryption, and e-signatures. With a focus on privacy and digital security, Rpost helps businesses ensure their communications are protected and legally binding.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

12 Patents

#4 in Pembroke

#44 in Bermuda

#48,090 in the World

Pembroke, Bermuda

Rpost International Limited

Forward Citations = 677

3 inventors:

Terrance A Tomkow (8 out of 25 patents)

Terrence A Tomkow (4 out of 4 patents)

Zafar D Khan (2 out of 11 patents)

4. Zafar Khan (4 patents)

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