Patent No. US11240064 (titled "System and method for a global virtual network") on Mar 11, 2020. The application was issued on Feb 1, 2022.
'064 is related to the field of computer networking, specifically addressing the problem of long-distance connectivity and throughput limitations over the public internet. Traditional solutions like WAN optimization and dedicated circuits (MPLS, DDN) have drawbacks such as point-to-point rigidity, high cost, and lack of control over internet traffic routing. The invention aims to provide a secure and optimized network overlay on top of existing internet connections.
The underlying idea behind '064 is to create a virtual global network (GVN) that intelligently routes traffic through a mesh of distributed devices, leveraging advanced tunneling and smart routing algorithms. This involves establishing secure connections between endpoint devices and access point servers strategically located around the world, dynamically adapting to changing network conditions to minimize latency and maximize throughput.
The claims of '064 focus on a network system comprising two endpoint devices communicating with respective devices, connected by a communication path. This path includes intermediate tunnels linking each endpoint device to access point servers and control servers. Crucially, at least one endpoint device establishes the communication path by identifying candidate paths, determining their security ratings, and selecting the path based on these ratings.
In practice, the invention involves endpoint devices equipped with software that constantly monitors network conditions and communicates with control servers to identify optimal routes. These routes are established using encrypted tunnels through access point servers, effectively creating a secure and optimized overlay network. The system dynamically adjusts to network congestion, packet loss, and other issues, ensuring reliable and high-performance connectivity.
The differentiation from prior approaches lies in the GVN's ability to provide a flexible and adaptable network solution without relying on dedicated circuits or fixed point-to-point connections. Unlike traditional WAN optimizers, the GVN can intelligently route traffic around problem areas and leverage multiple paths simultaneously. Furthermore, the emphasis on security ratings in path selection provides an added layer of protection against threats and vulnerabilities present on the public internet.
In the mid-2010s when ’064 was filed, global network optimization was typically implemented using hardware-based wide area network (WAN) optimizers at the edge of local area networks or through dedicated physical circuits. At a time when systems commonly relied on static point-to-point tunnels or rigid multi-protocol label switching (MPLS) paths, achieving dynamic routing across the public internet was often limited by a lack of control over middle-mile peering and transit. Software and hardware constraints made the real-time orchestration of a distributed mesh of virtual interfaces and automated tunnel management non-trivial, particularly when attempting to mitigate latency and packet loss over standard consumer internet connections.
Following the filing of this application, the examiner issued a non-final Office Action rejecting claims 1-10. The rejections were based on indefiniteness under 35 U.S.C. § 112(b), anticipation under 35 U.S.C. § 102, and obviousness under 35 U.S.C. § 103. The prosecution record does not describe the technical reasoning or specific claim changes that led to a subsequent allowance, as the provided documentation reflects an active rejection status.
This patent contains 10 claims, with claim 1 being the only independent claim. Independent claim 1 is directed to a network system connecting devices via a global virtual network, focusing on establishing a communication path based on security ratings of candidate paths. The dependent claims generally elaborate on and refine the features of the network system described in the independent claim, including DNS lookups, caching, smart routing, and firewall services.
Definitions of key terms used in the patent claims.
US Latest litigation cases involving this patent.

The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.
Get instant alerts for new documents