the firm's post-grant practitioners are some of the most experienced in the country.

David M. Longo, Ph.D.
Alec M. Royka
Aldo  Martinez
J. Derek  Mason, Ph.D., CLP
Jay E. Rowe, Jr., Ph.D.
Jenchieh (Joseph) Yuan
Vincent K. Shier, Ph.D.
Kevin L. Hartman, Ph.D.
Stephen G. Baxter, Ph.D.
Yuki  Onoe
John S. Kern
Aristotelis M. Psitos
Johnny  Ma
Richard D. Kelly
Erik M. Stang, Ph.D.
Bogdan A. Zinchenko
Ching-Cheng (Tony)  Chang
Jianping (James)  Wu
Robert  Tarcu
Soumya  Panda
Christopher  Ricciuti
Ryan W. Smith
Andrew M. Ollis
Dale M. Shaw
Yuanyi (Alex) Zhang
Long  Phan, Ph.D.
Steven B. Chang
Sameer  Gokhale
Kevin M. McKinley
Maki  Saitoh
Thomas M. Cunningham, Ph.D.
Tao  Feng, Ph.D.
Kasumi  Kanetaka
Yin Y. Nelson, Ph.D.
James R. Love
Peifang  Tian, Ph.D.
Teddy S. Gron
Michael R. Casey, Ph.D.
Craig R. Feinberg
John  Sipos
Kurt M. Berger, Ph.D.
Kevin Ross  Davis
Frank J. West
Eckhard H. Kuesters
Chika (Teranishi) Iitoyo
Arthur I. Neustadt
Marina I. Miller, Ph.D.
Brian B. Darville
Charles L. Gholz
Philippe J.C. Signore, Ph.D.
Edwin D. Garlepp
Daniel J. Pereira, Ph.D.
Tia D. Fenton
Derek  Lightner, Ph.D.
Nicholas  Rosa, Ph.D.
Alexander B. Englehart
Eric W. Schweibenz
Matthew H. Everhart, Ph.D.
Norman F. Oblon
Colin B. Harris
Jeffrey B. McIntyre
Robert T. Pous
Nanlin  Wang, Ph.D.
Akihiro  Yamazaki
Yanwen  Fei
Yorikatsu  Hohokabe, Ph.D.
Anna Z. Lloyd
Surinder  Sachar
Grace E. Kim
Stefan Uwe  Koschmieder, Ph.D.
Carl E. Schlier
Elissa L. Sanford
Robert W. Downs
Christopher I. Donahue
John F. Presper
Diane  Jones


Artificial Intelligence (AI)
Artificial Intelligence (AI)
Digital Health
Digital Health
Energy & Renewables
Energy & Renewables

Fast Facts

About Our

Law Firm

About Our Law Firm

Headquartered within steps of the USPTO with an affiliate office in Tokyo, Oblon is one of the largest law firms in the United States focused exclusively on intellectual property law.

Get to know our


Get to know our History

Norman Oblon with Stanley Fisher and Marvin Spivak launched what was to become Oblon, McClelland, Maier & Neustadt, LLP, one of the nation's leading full-service intellectual property law firms.

Our Local and

Global Reach

Our Local and Global Reach

Outside the US, we service companies based in Japan, France, Germany, Italy, Saudi Arabia, and farther corners of the world. Our culturally aware attorneys speak many languages, including Japanese, French, German, Mandarin, Korean, Russian, Arabic, Farsi, Chinese.

A few of our


A few of our ACCOLADES

Oblon's professionals provide industry-leading IP legal services to many of the world's most admired innovators and brands.




From the minute you walk through our doors, you'll become a valuable part of a team that fosters a culture of innovation, client service and collegiality.

A few ways to

GET In Touch

A few ways to GET In Touch
US Office

Telephone: 703-413-3000
Learn More +

Tokyo Office

Telephone: +81-3-6212-0550
Learn More +


Patent Forms

Downloadable Patent Forms

The United States Patent and Trademark Office (USPTO) issued final rules implementing the inventor's oath or declaration provisions of the America Invents Act (AIA) on August 14, 2012.

Steven B. Chang

Steven B. Chang

Senior Attorney ∙ US Office
T: (703) 413-3000
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Steven (Steve) B. Chang is a senior patent attorney who prosecutes patents in the firm’s Electrical and Mechanical Patent Prosecution practice groups. Mr. Chang has experience in a diversity of technical areas, including aerospace technologies, automotive technologies, semiconductor processing, and consumer electronics. He regularly conducts interviews with United States Patent and Trademark Office (USPTO) Examiners to expedite the prosecution of patents.

Prior to joining Oblon, Mr. Chang worked at Pratt & Whitney as both a Senior Structures Engineer, specializing in finite element analysis and fracture mechanics, and a Patent Liaison in aftermarket engineering. As a Senior Structures Engineer, Mr. Chang analyzed and designed commercial and military jet engine components, such as compressor and turbine rotors, blades, stators, vanes, shafts and cases, to meet structural integrity and Federal Aviation Administration safety requirements. Mr. Chang led the structural and lifing analysis for life-limited parts in the Global Material Solutions (GMS) program and was nominated for the American Society of Mechanical Engineers (ASME) Engineer of the Year award for his contributions to the GMS program. As a Patent Liaison, Mr. Chang evaluated and assessed the impact of patents on programs within aftermarket engineering and provided strategic guidance to the engineering staff.

His technical experience also includes an internship with GE Power Systems, performing structural and heat transfer finite element analyses to ensure dynamic performance of new design industrial gas turbines, and serving as a member of the Cornell University Hybrid Electric Vehicle (CUHEV) team.


  • University of Connecticut School of Law (J.D.)
    • Certificate in Intellectual Property
  • Cornell University (M.Eng.)
    • Mechanical Engineering
  • Cornell University (B.S.)
    • Mechanical Engineering


  • Connecticut
  • Virginia
  • Registered to practice before the U.S. Patent and Trademark Office


  • Engineer of the Year, American Society of Mechanical Engineers (2006)
  • Eagle Award, Pratt & Whitney
  • Named to Lawyers of Color's Second Annual Hot List (2014)

Professional Affiliations

  • American Bar Association