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By Compiled by Eric Agovino
October 04, 2005

Federal Circuit Affirms District Court in Lemelson Case

In Symbol Techs., Inc., v. Lemelson Med., Educ. & Research Found., LP, No. 04-1451, 2005 WL 2173572 (Fed. Cir. Sept. 9, 2005), the Federal Circuit affirmed the decision of the district court that the patents-in-suit are unenforceable under the doctrine of prosecution laches. The district court had found that Lemelson Foundation's asserted patent claims were invalid for lack of enablement, unenforceable under the doctrine of prosecution laches, and not infringed by Symbol's products.

The late Jerome H. Lemelson filed a patent application in 1954 that disclosed methods and an apparatus for performing the inspection and measurement of objects. In 1956, Lemelson filed a second application, which issued as U.S. Patent 3,081,379 (the '379 patent). Also in 1963, but before the '379 patent issued, Lemelson filed a continuation-in-part application from the 1954 and 1956 applications, adding drawings and text. In 1972, he filed another continuation-in-part that eventually became the basis for 16 additional patent applications filed between 1977 and 1993. Defendant Lemelson Medical, Education & Research Foundation, LP (“Lemelson Foundation”) is the assignee of approximately 185 unexpired patents and patent applications of Lemelson. This patent portfolio has generated license agreements from more than 1000 companies for royalties upwards of $1.5 billion.

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