Please take a look at our professional’s backgrounds below. Our firm values relevant industry experience in our professionals as you can be seen in our backgrounds. We believe that engineering experience designing and developing products is essential experience for someone who is drafting and prosecuting patents. Many firms may utilize patent attorneys who went directly from engineering college right into law school, or attorneys who were employed in peripheral areas of engineering such as sales or applications engineering. That may get the job done, but we believe there is no substitute for actual experience in designing a product and getting it into production.

Paul B. Heynssens

Patent Attorney and Managing Member


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Phoenix, AZ
Seattle, WA

Practice Areas
Mechanical Devices
Medical Devices
Electro-Mechanical Devices


Paul B. Heynssens is a registered patent attorney (47,648), and counsels clients in a variety of intellectual property and technology matters including patent prosecution (US, PCT, and foreign), and portfolio management. He has drafted and prosecuted patent applications in the areas of electronics, wireless devices, computer systems, computers, software, semiconductors, lasers, and mechanical devices, among others. Mr. Heynssens also maintains a substantial trademark practice where he helps clients select and register trademarks and servicemarks to protect their trade identity.

Mr. Heynssens was formerly a partner at Jennings Strouss and Salmon LLP in Phoenix Arizona. There he provide IP counseling and strategy advice as well as preparing and prosecuting domestic and foreign patent applications.

Mr. Heynssens also has experience as an in house patent attorney with Microsoft’s Redmond Washington campus. At Microsoft, Mr. Heynssens helped establish a new patent prosecution group and chaired its training committee to train engineers to be patent agents. He has firm experience at the patent boutique firm of Christie Parker & Hale in Pasadena, where he was responsible for portfolio development for various clients, ranging from startups to multinationals. He also has experience with large general practice firms, having worked at the Los Angeles office of the international law firm Hogan Lovells where he practiced IP law including assisting in patent litigation.

Law is a second career for Mr. Heynssens. He graduated from Purdue University with a bachelor’s degree in Electrical engineering. After working for large corporations as a design and development engineer he went back to school and obtained his law and MBA degrees from Arizona State University. He has worked as a patent attorney since graduation from Law School in 1998.

Before practicing law, Mr. Heynssens was an experienced electronic design engineer. At Motorola, he designed cellular telephone base station equipment, and was an RF design task leader in the development of microwave, UHF and VHF radio transmitters and receivers for military applications. While at Raytheon he designed circuits for communications equipment for the MILSTAR satellite communications program, and also designed high rate computer controlled test equipment for microwave and RF circuits.

Mr. Heynssens community involvements have included being a founding member of the Stevenson Ranch California Optimist Club, and the first Boy Scout Troop in Stevenson Ranch California. He was also a Wood Badge trained Scoutmaster, and Assistant District Commissioner with the Boy Scouts of America. He is also a licensed Amateur Radio Operator-call sign N9NJE.

Legal Experience

Paul B. Heynssens, Attorney at Law PLC, Seattle, WA and Phoenix, AZ, Managing Member, 2010 to present
Ater Wynne LLP, Seattle, Washington, Of Counsel, 2014 to present
Jennings, Strouss & Salmon PLC, Phoenix, Arizona, Partner, 2006 to 2010
Microsoft Corporation, Redmond, Washington, Senior Attorney, 2004 to 2006
Hogan Lovells LLP, Los Angeles, California, Attorney, 2001 to 2004
Christie, Parker & Hale LLP, Pasadena, California, Attorney, 1998 to 2001

Engineering Experience

Motorola Cellular Telephone, Arlington Heights, IL, Senior Electronic Design Engineer, 1990-1993
Motorola Government Electronics, Scottsdale AZ, Senior Electronic Design Engineer, 1987-1990
Raytheon Gvt. & Defense Systems, St. Petersburg FL, Electronic Design Engineer, 1984-1987
Raytheon Tucson Missile Systems, Tucson AZ, Member of Technical Staff, 1981-1984


Arizona State University, J.D. and M.B.A., May 1998
Purdue University, Deans List, B.S.E.E., May 1981

Professional Licenses

U.S. Patent Office registration no.: 47,648
Arizona State Bar Admitted 1999
California State Bar Admitted 1999
Wyoming State Bar Admitted 1999
Washington D.C. Bar Admitted 2005
Washington State Bar Admitted 2005


“File a Patent, Go to Jail” Intellectual Property Today, March 2004

Xin Dai

Patent Agent

Xin-headshot 2

Tucson, AZ

Practice Areas
Mechanical Devices
Wireless Communications
Electric Power Systems
Semiconductor Processing
Industrial Plasma Engineering

Mr. Xin Dai is a registered patent agent (72,098), whose practice includes client counseling, patent drafting and prosecution (US, PCT, and foreign), including portfolio prior art searches and analysis. He has drafted and prosecuted patent applications in the areas of electronics, computer systems, computers, software, semiconductors, lasers, and mechanical devices, among others.

Mr Dai was formerly a Patent Agent at Paradigm IP Law, PC., a San Diego based IP boutique. There he prepared and prosecuted US and foreign patent applications, including preparing Appeals Briefs. Prior to that he was a Scientific Advisor at Nguyen & Tarbet LLP a Tucson based IP boutique, where he specialized in patent drafting and prosecution. His experience includes drafting and prosecuting applications in the areas of digital electronics, mobile devices, medical treatment methods, electro-mechanical devices, mechanical systems and the like. At Global Patent Solutions LLC, of Scottsdale Arizona, he was a Patent Analyst. There he did extensive patent searching and analysis, he is experienced in performing novelty searches, validity/invalidity searches, freedom to operate searches and IP landscape searches. While at Global Patent Solutions he also prosecuted applications, in particular analysis and prosecution relating to PCT Searches and written opinions.

Prior to entering the field of patent law, Mr. Dai was an experienced electrical engineer and inventor, having been employed as a Research Scientist by Sigma Technologies International LLC, of Tucson Arizona. There he was engaged in research and development of plasma processing equipment for the semiconductor, solar power, medical device industries, among others. His work included prototype development, writing and presentation of his research efforts, customer technical support, and technology transfer of intellectual property to industrial applications.

Mr. Dai received his Ph.D. in electrical engineering from the University of Tennessee, in Knoxville. His studies concentrated in the area of plasmas and their properties. He is a member of the IEEE, AVS (American Vacuum Society), and the American Physics Society. He is an accomplished author having authored, or co-authored eighteen published papers.


Chinese Fluent
English-Fluent holding a Business English Certificate, 1996 (Issued by University of Cambridge, UK)


Paul B. Heynssens, Attorney at Law PLC, Phoenix, Arizona, Patent Agent, 2015 to present
Paradigm IP Law, PC, San Diego, California, Patent Agent, 2013 to 2015
Nguyen & Tarbet LLP, Tucson, Arizona, Scientific Advisor 2012-2013
Global Patent Solutions LLC, Scottsdale, Arizona, Patent Analyst, 2011 to 2012

Engineering Experience

Sigma Technologies International LLC, Tucson, Arizona, Research Scientist, 2007-2009


University of Tennessee, Ph.D. Electrical Engineering, 2006
Huazhong University of Science and Technology, M.S. Electrical Power Engineering, (with honor), 1999
Huazhong University of Science and Technology, B.S. Electrical Power Engineering, (with honor), 1996

Professional Licenses

U.S. Patent Office registration no.: 72,098

Selected Publications

1. Angelo Yializis and Xin Dai, “A New Dielectrophoretic Coating Process for Depositing Thin and Uniform Coatings on Films and Fibrous Surfaces”, Vacuum and Coating Technology Journal, January 2009, page 40- 43.

2. Xin Dai, Sirous Nourgostar, “Surface Energy Enhancement of Bulk Plastics Using the One Atmosphere Uniform Glow Discharge Plasma (OAUGDP®)”, 33rd IEEE International Conference on Plasma Science, Traverse City, Michigan, June 4-8, 2006.

(A full list of 18 papers can be sent upon request)

Stephanie L. Goff



Apache Junction, AZ

Stephanie L. Goff is an experienced Trademark and Patent Paralegal. She has been preparing and filing domestic and foreign filings of Trademarks and Patents since 1999. She has served as the office manager for the Nelson & Roediger firm also handling the billing, receivables/payables, file maintenance, managing the docket, and all other tasks needed to manage a two attorney office, and keep it running smoothly. Through her work as an experienced paralegal Stephanie helps us keep our operation cost effective by assisting with many administrative patent and trademark tasks including:

Trademark (domestic and foreign)

  • Client intake information including information regarding proposed new trademark / service mark, and description of the goods;
  • Conducting preliminary trademark / service mark searches using the SAEGIS Database, Google and other Internet search engines;
  • Reviewing preliminary results; prepare file for attorney; providing attorney with summary of results;
  • Preparing trademark / service mark applications (use-based and ITU) for client signature, prepare formal drawing,
  • Collection and review specimens for Trademark Office acceptability, filing of the trademark application;
  • Corresponding with foreign associate re: foreign trademark / service mark filings, i.e., CTM, select foreign countries; docketing due dates, advisory correspondence to client
  • Initial preparation and filing of Statements of Use / Requests for Extension of Time ;
  • Initial preparation of draft responses to Office Actions and subsequent filing;
  • Prepare and file Notices of Opposition / Request for Extension of Time with TTAB.
  • Notify clients regarding trademark registration maintenance; Prepare §§8 & 15 and §§8 & 9
  • Declarations as necessary, submitting to the Trademark Office;
  • Management of the trademark docket (all docketing is done in Foundation IP, a product of CPA Global)

Patents (domestic and foreign)

  • Assisting with client intake information including inventor information;
  • Collection of information for, preparation of patent application filing documents;
  • Preparation of assignments and recordation cover sheet,
  • Checking and prepping drawings (U.S. and PCT) for compliance with USPTO/PCT requirements;
  • Review of the file for prior art disclosure and preparation and filing IDS statements as needed;
  • Filing of U.S. patent applications, i.e., design; provisional, utility; continuation; continuation-in-part; PCT applications;
  • Assisting with the reporting and preparation of Responses to Office Actions, and the preparation and filing of RCE’s
  • Receiving Letters Patent, review of claims, entering into long-term docket for maintenance fee tracking, forwarding to client;
  • Management of the patent docket (all docketing is done in Foundation IP, a product of CPA Global);
  • Notifying clients regarding maintenance fees; paying maintenance fees;
  • Corresponding with foreign associates and assisting in management of foreign filing and prosecution re: filing PCT applications, corresponding with foreign associates regarding national stage filings and entry into the PCT National Phase;
  • Corresponding with foreign associates regarding: amendments, annuities, legalization of documents, receiving foreign Letters Patent, reviewing claims, entering annuity reminders into docket, forwarding correspondence to the client.

Legal Experience

Paul B. Heynssens Attorney at Law, PLC, Phoenix, Arizona, Paralegal, 2011 to present
Nelson and Roediger, Phoenix, Arizona, Paralegal, 1999 to 2011
Gibson Ferrin & Riggs PLC, Mesa, Arizona, Legal Assistant, 1997 to 1999


International Business College, Lubbock, Texas, Legal Secretary, 1988