Steven E. Warner

Steven E. Warner


Partner, Washington DC

Steven Warner chairs the firm's Industrial Equipment and Manufacturing Practice Group.  Since he joined Fitzpatrick in 1989 he has concentrated in the areas of patent application writing, prosecution, and counseling, as well as in rendering validity, patentability, non-infringement and freedom-to-operate opinions, primarily involving the mechanical, electrical and chemical arts. He also has had extensive experience in trademark prosecution and enforcement, and has been involved in various patent litigations, reexaminations, reissues and interferences.

Steve has prepared and prosecuted many patent applications for numerous clients in various technologies, including personal care, air care, home cleaning, and home storage devices and products, as well as semiconductor wafer photolithography and circuit pattern alignment, magnetic and magneto-optical recording devices, laser beam recording, ink jet and bubble jet printing, photocopying, photography, thin film transistors, textiles, building products, industrial filtration, fluid dispensing, paper making and paper products, fluidized bed combustion and industrial furnace and boiler technology. He has extensive experience in the prosecution of both U.S. patent applications and international patent applications, including those filed under the Patent Cooperation Treaty. 

Prior to joining Fitzpatrick, Mr. Warner was a Primary Examiner with the U.S. Patent and Trademark Office.

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