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


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
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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.

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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