A patent problem

Thank you for the article "Developers of Software Get Boost from Federal Patent Office," June 6. Unfortunately, the article repeats a misperception about patent law that has landed more than a few patent owners into trouble. It states that a patent owner has an exclusive right to make and sell the invention. Many inventions are covered by more than one patent, and a patent owner may be infringing someone else's patent by making, using, or selling her own patented invention. As a practicing patent attorney, I would advise any patent owner to conduct a search for other patents that one might infringe before making any sizable investment in marketing or producing an invention.

Scott R. Hansen Los Angeles

Your letters are welcome. For publication they must be signed and include your address and telephone number. Only a selection can be published and none acknowledged. Letters should be addressed to "Readers Write" and may be sent by mail to One Norway St., Boston, MA 02115, by fax to 617-450-2317, or by Internet E-mail (200 words maximum) to OPED@RACHEL.CSPS.COM.

We want to hear, did we miss an angle we should have covered? Should we come back to this topic? Or just give us a rating for this story. We want to hear from you.