US 6,502,135 C3 (1,673rd)
Agile network protocol for secure communications with assured system availability
Edmund Colby Munger, Crownsville, MD (US); Douglas Charles Schmidt, Severna Park, MD (US); Robert Dunham Short, III, Leesburg, VA (US); Victor Larson, Fairfax, VA (US); and Michael Williamson, South Riding, VA (US)
Filed by Edmund Colby Munger, Crownsville, MD (US); Douglas Charles Schmidt, Severna Park, MD (US); Robert Dunham Short, III, Leesburg, VA (US); Victor Larson, Fairfax, VA (US); and Michael Williamson, South Riding, VA (US)
Assigned to VIRNETX INC., Scotts Valley Drive, CA (US)
Reexamination Request No. 95/001,682, Jul. 11, 2011.
Reexamination Certificate for Patent 6,502,135, issued Dec. 31, 2002, Appl. No. 09/504,783, Feb. 15, 2000.
Reexamination Certificate C1 6,502,135, issued Jun. 7, 2011.
Reexamination Certificate C2 6,502,135, issued Jul. 17, 2024.
Application 95/001,682 is a continuation of application No. 09/429,643, filed on Oct. 29, 1999, granted, now 7,010,604.
Claims priority of provisional application 60/137,704, filed on Jun. 7, 1999.
Claims priority of provisional application 60/106,261, filed on Oct. 30, 1998.
Inter Partes Reexamination Certificate issued on Oct. 21, 2024.
Int. Cl. H04L 29/06 (2006.01); H04L 9/40 (2022.01); H04L 45/00 (2022.01); H04L 45/24 (2022.01); H04L 45/28 (2022.01); H04L 61/00 (2022.01); H04L 61/4511 (2022.01); H04L 61/5007 (2022.01); H04L 61/5076 (2022.01); H04L 61/5092 (2022.01); H04L 65/403 (2022.01); H04L 101/604 (2022.01)
CPC H04L 65/403 (2013.01) [H04L 45/00 (2013.01); H04L 45/24 (2013.01); H04L 45/28 (2013.01); H04L 61/35 (2013.01); H04L 61/4511 (2022.05); H04L 61/5007 (2022.05); H04L 61/5076 (2022.05); H04L 61/5092 (2022.05); H04L 63/0272 (2013.01); H04L 63/0407 (2013.01); H04L 63/0414 (2013.01); H04L 63/0428 (2013.01); H04L 63/08 (2013.01); H04L 63/1458 (2013.01); H04L 63/1466 (2013.01); H04L 63/1491 (2013.01); H04L 63/10 (2013.01); H04L 2101/604 (2022.05)]
OG exemplary drawing
Attention is directed to the decision of Virnetx Inc. v. Cisco Systems, Inc. et al, (E.D. TEX. Aug. 11, 2010) (No. 6:10-cv-00417) (Final Judgement on Mar. 19, 2013). This reexamination may not have resolved all questions raised by this decision. See 37 CFR 1.552(c) for ex parte reexamination and 37 CFR 1.906(c) for inter partes reexamination.
 
AS A RESULT OF REEXAMINATION, IT HAS BEEN DETERMINED THAT:
Claims 1-10 and 12-18 were previously cancelled.
Claim 11 is cancelled.
11. The system of claim 10, wherein the gatekeeper computer creates the VPN by establishing an IP address hopping regime that is used to pseudorandomly change IP addresses in packets transmitted between the client computer and the secure target computer.