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Five Xerox Inventors Hit 100-Patent Milestone in 2001
Xerography Continues to Offer 'Plenty of Room to Run'
ROCHESTER, N.Y.--(BUSINESS WIRE)--Dec. 10, 2001--2001 was a banner year for five prolific Xerox Corporation (NYSE:XRX - news) inventors, each of whom earned his 100th U.S. patent this year.

On the whole, the company's researchers have been prodigious idea generators - racking up nearly 15,000 U.S. patents since the company's first one issued in 1933 - but only nine Xerox inventors have reached the exclusive 100-patent club.

The five scientists who received their 100th patent in 2001 all had milestone patents related to xerography and imaging processes, demonstrating that a technology invented more than 60 years ago remains a fertile area, producing innovations and technological advances that will continue to reverberate through the copying, printing and imaging industries.

Three of the scientists are from Xerox's Supplies Delivery Unit in Webster, N.Y., which designs, develops and produces imaging materials and components used in Xerox printers and copiers. One is from the Xerox Research Centre of Canada, Mississauga, Ontario, which investigates leading-edge imaging materials; and the fifth scientist is from the Wilson Center for Research and Technology in Webster, which develops new marking and imaging technologies.

``Their achievement represents the output of extraordinarily productive careers,'' said Herve Gallaire, president, Xerox Innovation Group. ``It underscores the company's success with research to maintain its lead as a technology innovator, and it demonstrates that xerography remains a dynamic area of research with plenty of room to run.''

The results of the scientists' inventions have powered existing products and processes and will be seen in products still to come. For instance, these scientists have been responsible for many innovative technologies at the heart of the Xerox DocuColor iGen3(TM) Digital Production Press, a breakthrough color printing press with offset-like quality that will launch next year.

The five Xerox scientists are:

William W. Limburg, a principal scientist in the Supplies Delivery Unit before he retired in January. He received his 100th patent on Sept. 18 and currently holds 101 U.S. patents. His work was predominantly in the area of novel photoreceptors. He holds a doctorate in chemistry from the University of Toronto and was hired by Xerox in 1965.
Damodar M. Pai, a principal scientist in SDU until he retired in January. He received his 100th patent on Feb. 27 and he currently holds 110 U.S. patents. A physicist, he was awarded the American Chemical Society's ``Hero of Chemistry Award 2000.'' Pai joined Xerox in 1965; he received a doctorate in electrical engineering from the University of Minnesota.
John (Jack) F. Yanus, a principal scientist in SDU. He received patent No. 100 on March 6 and currently holds 106 patents. He received a bachelor of science degree in chemistry from SUNY Albany and joined Xerox in 1968. Yanus has done pioneering work on the organic photoconductor devices that are used in most modern xerographic printers. He received the American Chemical Society's ``Hero of Chemistry Award 2000'' at the same time as Pai.
Guerino G. Sacripante works in the Xerox Research Centre of Canada. A principal scientist, he received patent No. 100 on May 22 and currently holds 104 U.S. patents. He joined Xerox in 1987 after receiving his doctorate in chemistry from McGill University. Highlights of his patent portfolio include novel toners and resins, including Xerox's new EA toner technology, and inventions in novel materials for inkjet and display technologies.
Santokh Badesha, a principal scientist at the Wilson Center. He received his 100th U.S. patent Oct. 2. Badesha received a doctorate in chemistry from the University of East Anglia in the U.K., and he joined Xerox in 1980. His areas of work have ranged from designing environmentally friendly materials to investigating novel composite materials with enhanced thermal, chemical and mechanical stability.
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