Patents Richard C. Turner Sughrue, Mion, Zinn, Macpeak & Seas, PLLC Washington, DC 202 / 663-7935 dturner@ sughrue.com sughrue.com		What is the significance of marking my products with their patent numbers? Patent marking serves two basic purposes. The first and obvious one is that it serves as a warning to potential copyists that they copy at their peril. The second purpose is to benefit a patent holder in litigation. If your products are marked, your recovery of damages will date from the time infringement began, rather than the date of notice to the infringer.

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