Click here to conduct a patent search of ISSUED U.S. patents using search words through the United States Patent and Trademark Office.  This type of search is not as comprehensive as that conducted by Robert J. Sayfie, P.C., but it may be used to locate some relevant patent documents that have been issued by the United States Patent and Trademark Office.

Click here to conduct a patent search of FILED and PUBLISHED U.S. patent applications using search words through the United States Patent and Trademark Office.  This type of search is not as comprehensive as that conducted by Robert J. Sayfie, P.C., but it may be used to locate some relevant patent documents that have been filed and published by the United States Patent and Trademark Office.