VeriBase Sues Hong Kong Yizheng Technology in East Texas on Write-Access Control Patent 9,600,661.

The case is VeriBase LLC v. Hong Kong Yizheng Technology Co., Ltd, No. 2:26-cv-00780 (E.D. Tex.), filed September 2, 2026 in the Marshall Division and assigned to Judge Rodney Gilstrap and Magistrate Judge Roy S. Payne. VeriBase says it is a New Mexico company, and the complaint describes Hong Kong Yizheng Technology as a Hong Kong corporation based in Kowloon, Hong Kong, and pleads venue under 28 U.S.C. 1391(c) because it is a foreign corporation. VeriBase demands a jury.

The patent

U.S. Patent 9,600,661, titled System and Method to Secure a Computer System by Selective Control of Write Access to a Data Storage Medium, issued March 21, 2017 from an application filed December 1, 2005. Claim 1 covers a method of controlling write access to a mass data storage device: a first process running in kernel mode alongside the operating system monitors storage accesses and detects when a separate application tries to write to the device; the method then checks a rules database that lists applications and an access level for each, and allows or blocks the write depending on the access level assigned to that application.

What the lawsuit is about

VeriBase alleges that Hong Kong Yizheng Technology directly infringes, and since service of the complaint has induced infringement of, one or more claims of the '661 patent. The complaint identifies the accused products and exemplary claims only in claim charts attached as Exhibit 2, which are not available, and alleges, on information and belief, that numerous other devices also infringe. It asks for a judgment that the patent is valid and infringed, damages under 35 U.S.C. 284, and a finding that the case is exceptional under 35 U.S.C. 285.

Status

The docket shows a summons issued to Hong Kong Yizheng Technology on September 2, 2026.

What to watch next

Watch for service on Hong Kong Yizheng Technology under the rules for foreign defendants and for its answer or Rule 12 motion. The related suits on the patent are No. 2:26-cv-00782 and No. 2:26-cv-00781; No. 2:26-cv-00782 was dismissed on October 7, 2026.