Invitrogen and Agilent Technologies resolve all pending patent litigations

Invitrogen Corporation and Agilent Technologies have jointly announced a confidential settlement of multiple patent litigations pending between the two companies.

The settlement resolves three patent infringement lawsuits between Invitrogen and Stratagene, Inc. Agilent acquired Stratagene in 2007.

These patent litigations between the companies had been pending since 2000 and 2001. In June 2000, Invitrogen sued Stratagene in the United States District Court for the District of Maryland, Southern Division, for infringement of Invitrogen’s U.S. Patent Nos. 6,063,608, 5,244,797, and 5,405,776 relating to the use and sale of RNase H minus reverse transcriptase (RT) products. This case had been stayed pending resolution of a related litigation with Clontech.

On March 12, 2001, Invitrogen filed suit against Stratagene for infringement of U.S. Patent No. 4,981,797. That patent covers a process for producing E. coli cells that are more effective at absorbing foreign DNA and thereby more “competent.” In 2006, the United States District Court for the Western District of Texas, Austin Division, entered judgment awarding Invitrogen $16.2 million plus prejudgment interest, post-judgment interest, attorneys’ fees and costs, and entered an injunction against further infringement. Stratagene appealed the judgment to the United States Court of Appeals for the Federal Circuit.

In November 2001, Stratagene filed suit against Invitrogen in the United States District Court for the District of Maryland, Southern Division, for infringement of U.S. Patent No. 5,556,772 related to the use and sale of certain DNA polymerase blend products. The case had been stayed by the Court pending a reissuance proceeding before the United States Patent Office.

Under the terms of the agreement, Agilent will make an undisclosed settlement payment to Invitrogen. In addition, Agilent will discontinue sales of its RNase H minus RT products and Invitrogen will obtain a license from Agilent and pay an undisclosed royalty to sell its DNA polymerase blend products. All litigation will be dismissed. No other details of the settlement were disclosed.