Blueprint of a gear train.

 Robert J. Yarbrough
Patent Attorney

 Patents - Inventions - Trademarks 

Portrait of Robert J. Yarbrough.Biography of
Robert J. Yarbrough 

I have practiced law for thirty years.   I am a patent attorney licensed to practice before the United States Patent and Trademark Office and hold a degree in mechanical engineering.  I am a partner in the law firm of Lipton, Weinberger &  Husick, a specialty intellectual property firm based in Southeastern Pennsylvania.  I also am an environmental attorney licensed in Pennsylvania and Kentucky.   In environmental matters, I am counsel to Drinker, Biddle & Reath  LLP, a firm of over six hundred lawyers with offices in Philadelphia, Washington, D.C., Princeton, Los Angeles and San Francisco.

AV Martindale-Hubbell ratingI am rated 'AV' (preeminent) by the Martindale-Hubbell attorney rating agency based on peer reviews by other attorneys.  'AV' is the highest possible rating and fewer than 5 percent of attorneys achieve an 'AV' rating. 

I opened my patent law office in 1998 and have practiced patent law from that time to the present.  I worked in the Environmental Practice Group of   Drinker, Biddle & Reath from 1996  until 1998 and in the   Environmental Department of Cohen, Shapiro, Polisher, Shiekman &   Cohen, a Philadelphia regional firm, from 1989 through 1995.  I  enforced environmental laws for the Commonwealth of Kentucky from 1977 through 1988. 

I am Chairman of the Pennsylvania Intellectual Property Forum (1998 - present).  I am past Chairman of the  Delaware County Bar Association Intellectual Property Committee  (2002) and past Legislation Co-Chair of the Philadelphia Bar  Association Environmental Law Committee (2000-2001).   I am a frequent author and presenter on intellectual property topics. 

Follow this link to my recent publications.  To send an e-mail to me, follow this link: e-mail. The Pennsylvania Intellectual Property Forum advocates for individual inventors and small businesses.  Follow this link to learn about our advocacy activities.