U.S. Patents Riddled With Mistakes, Survey Finds

By Marius Meland (January 13, 2006, 12:00 AM EST) -- An astounding 98% of approved U.S. patent applications contain mistakes ranging from simple spelling errors to omitted claims. Many of those mistakes could result in losses of millions of dollars for inventors and licensees, a patent support firm has found.

The mistakes were uncovered by Intellevate, the world's largest patent proofreading organization. More than half of the mistakes it found at its office in India were made by the U.S. Patent and Trademark Office, according to Intellevate chief executive Leon Steinberg.

"We find mistakes on everything from leaving out portions of the patent claims to putting in the wrong drawings, to...

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