Seiko Epson’s Ink Jet Patents Upheld

By Karen Kaplan

Sept. 17, 1999 12 AM PT

A federal appeals court has confirmed the validity of several patents for ink jet cartridges belonging to Seiko Epson Corp. and its Epson America unit in Long Beach. Epson claimed inexpensive ink jet cartridges made by Dallas-based Nu-Kote Holdings and its manufacturing affiliate Pelikan Produktions violated Seiko’s patents. A federal judge in Los Angeles ruled in 1997 that several of Seiko’s patents were unenforceable, but an appeals panel overturned that decision last week. Epson said it would seek damages from Nu-Kote and Pelikan.

More to Read

Karen Kaplan

Karen Kaplan covers science and medical research for the Los Angeles Times. She has been a member of the science team since 2005, including 13 years as an editor. Her first decade at The Times was spent covering technology in the Business section as both a reporter and editor. She grew up in San Diego and is a graduate of MIT and Columbia University.

Seiko Epson’s Ink Jet Patents Upheld

More to Read

More From the Los Angeles Times