US 6,502,135 C2 (1,671st)
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. 95/001,679, Jul. 8, 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.
Application 95/001,679 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 Jul. 17, 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). 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, 3, 4, 7, 8, 10 and 12 were previously cancelled.
Claims 2, 5, 6, 9 and 13-18 are cancelled.
Claim 11 was not reexamined.
At the time of issuance and publication of this certificate, the patent remains subject to pending reexamination control number 95/001,682 filed Jul. 11, 2011. The claim content of the patent may be subsequently revised if a reexamination certificate issues from the reexamination proceeding.
1. A method of transparently creating a virtual private network (VPN) between a client computer and a target computer, comprising the steps of:
(1) generating from the client computer a Domain Name Service (DNS) request that requests an IP address corresponding to a domain name associated with the target computer;
(2) determining whether the DNS request transmitted in step (1) is requesting access to a secure web site; and
(3) in response to determining that the DNS request in step (2) is requesting access to a secure target web site, automatically initiating the VPN between the client computer and the target computer.