Patent attorneys located near the US Patent Office
5400 Shawnee Road, Suite 310, Alexandria, VA 22312-2300 USA
Tel: 1.703.415.0012, Fax: 1.703.415.0013



Practice Areas


PTAB Trials and Interferences


Business Law

Click the button below to select from Neifeld IP Law's email lists on relevant areas of law and practice.

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PTAB Trials and Interferences

Richard Neifeld
Robert W. Hahl
Robert Mihail

Dr. Hahl, Mr. Mihail, and I have substantial experience in inter partes Board practice, having collectively participated to various degrees on more than 50 interferences, and 25 AIA proceedings. In 2000-2002, I chaired the AIPLA Interference Committee. I administer the 'PatentInterPartes' forum and frequently publish articles PTAB law and practice and IP law generally.

Assuming no conflict, if you need either strategic advice or immediate representation, we can help. Check our attorneys page for contact information:

What others have said about our services:

"I can't make a stronger recommendation for counsel in litigation proceedings before the USPTO. I would bet they are just as good in Federal Court as well, but candidly, we have no experience with them in that. Nevertheless, I wouldn't hesitate a second to engage them if we needed representation in court, or for any patent issue for that matter." James T. Ayers, Jr., CEO Tezzaron Semiconductor Corporation.

"Rick, I want to compliment you on a job very well done yesterday. You were prepared and thorough. Honestly, I felt sorry for [the expert witness]." Michael Scalise, Executive Director, Intellectual Property Mgt. Greatbatch, Inc.

"[Rick] Outstanding Depo. Was fun to watch you at work. Your calm and easy going manner got him to keep talking even as he sensed he was being discredited in the extreme. Impressive performance." Robert Stevenson, Senior Scientist, Greatbatch, Inc.

“Thank you very much – great job!" Alexander Poltorak, Chairman & CEO, General Patent Corporation.

“Thank you so very much for your excellent work.” Uri Cohen, Ph.D.

"Thank you for your invaluable assistance. Always timely. Always helpful." John Nathan, Partner, Paul, Weiss, Rifkind, Wharton & Garrison LLP.

"I appreciate your updates, and particularly these re the PTAB. And I would greatly appreciate a copy of your draft article. Could you please keep me in mind for future updates/info you gather/analysis re PTAB practice?" Professor Lisa A. Dolak, Director, Institute for the Study of the Judiciary, Politics, and the Media at Syracuse University.

"We don't know each other, but I wanted to say hello and compliment you on the AIA presentation that you linked in your email last week. I have made several AIA presentations, but yours is really well done, and helpful, as are all of your posts." Bryan Wheelock, Principal, Harness, Dickey & Pierce, P.L.C.

“It’s always an education conversing with you.” Michael Scalise, Ex. Dir., Intellectual Property Mgt., Greatbatch, Inc.

"Rick's technical expertise and his knowledge of all aspects of patent prosecution are highly impressive. Rick is a true perfectionist who is able to focus on both the details and understand the impact and significance to the business. I strongly recommend Rick." Justin Summer, Catalina Marketing.

"Rick is a recognized patent law expert and outstanding lawyer generally. I recommend him highly to all. He has consistently been an impressive member of the patent bar." Rouget F. Henschel, Partner, Foley and Lardner.

"Rick is one of the nicest and most informed patent attorneys I have ever worked with. He is always willing to share his extensive knowledge base with friends and colleagues and always answers questions in such a way as to provide helpful and practical advice. I highly recommend Rick and his law firm for any patent-related work. He will do an excellent job." Gautam Prakash, Associated, Baker Donelson.

"Rick Neifeld is a bright, innovative patent attorney with offices close to the U.S. Patent and Trademark Office. We attended law school together at George Washington University. Since graduation, Rick has done it all ... worked at a large patent law firm, started his own law firm and been a leader in the patent and interference bar. We have not worked together, but I admire and respect his work ethic and creativity." Janelle Waack, Novak Druce.

"Rick is a great patent attorney with depth of knowledge in the subject matter and a keen sense of judgment and creativity in analyzing and solving a problem. He has great people skills and strong work ethics. It was a pleasure to work with Rick." Shriram Bagrodia, Ph.D. "Rick is a well known member of the patent interference bar and he is Maier & Maier's go to guy for any complex patent or interference law questions." Tim Maier, Esq., Maier & Maier, PLLC.

"Rick is not only an excellent legal expert, but technically competent as well. He makes it a point to fully understand your work as well as providing expert feedback and guidance. He remains abreast of the latest changes from the USPTO and keeps his clients well-informed." Jim Clack, Catalina Marketing.

"Rick is a great patent attorney with depth of knowledge in the subject matter and a keen sense of judgment and creativity in analyzing and solving a problem. He has great people skills and strong work ethics. It was a pleasure to work with Rick." Shriram Bagrodia, Ph.D., Cereplast.

“You are terrific! Thanks! Look forward to working with you more.” Rachel Teitelbaum, Ph.D., Wolff, Bregman and Goller.

"I have worked with Rick for many years on both patent and trademark matters. He has a tremendous wealth and depth of knowledge in the field that is as far as I know unmatched. I give him my unqualified recommendation." Martin Goffman, Ph.D., Martin Goffman Associates.

"Great Article ... I just read your article regarding restrictions. I found it very informative." Christopher Paul Mitchell (Chris), Registered Patent Attorney.

"[t]hat's a really cool way to transfer files. I'm going to see if our IT people can set us up to do the same." Susan Mack, Sughrue Mion, PLLC.

Review our legal publications.

You can see some of the recent patent and appeals/interferences my firm has been involved in here.

U.S. Patents Prosecuted by Neifeld IP Law, PC
U.S. Published Patent Applications Prosecuted by Neifeld IP Law, PC
Published Decisions on U.S. Patent Appeals and Patent Interferences Prosecuted by Neifeld IP Law

** If you are an individual, corporate representative, attorney or law firm interested in patents, please contact Dr. Neifeld at 703-415-0012, extension 100 or email address, . Please send instructions for new patent application filings in the USPTO to or via facsimile to our facsimile number 703-415-0013.

** If you are an individual, corporate representative, foreign attorney or law firm interested in trademarks, please contact Bruce Margulies at 703-415-0012, extension 102 or email address, . Please send instructions for new trademark application filings in the USPTO directly to Bruce at his email address,, or via facsimile to our facsimile number, 703-415-0013.

Business Law
** If you are interested in Business Law issues, please contact Daniel Sachs at 703-415-0012 extension 101 or email address, .

For useful links for patents and trademarks, please see our resources page: