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.

Chika (Teranishi) Iitoyo

Chika (Teranishi) Iitoyo

Associate βˆ™ Tokyo Office
T: +81-3-6212-0552
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Chika (Teranishi) Iitoyo is an attorney in Oblon’s Chemical Patent prosecution practice group. Her practice focuses on patent prosecution, legal opinions and client counseling for both domestic and international clients in pharmaceuticals, cosmetics, agrichemicals, resins, alloys, polymers, and semiconductors. Ms. Iitoyo holds a Juris Doctor degree, from University of New Hampshire School of Law, and another Juris Doctor from the University of Tokyo School of Law. This educational background provides her with a unique ability to assist clients in international intellectual property law transactions.

Prior to joining Oblon, Ms. Iitoyo engaged in patent searching and technology transfer with the International Technology Transfer Institute of Franklin Pierce Law Center. While there, she contributed to a project in which extensive patent services were conducted and the educational report, Patent Landscape of Protein/Peptide Vaccines for HIV, was compiled.

Bar Membership Other Than Virginia


  • University of New Hampshire School of Law (J.D.)
    • formerly Franklin Pierce Law Center
  • University of Tokyo School of Law (J.D.)
  • Kyoto University (M.S.)
    • Agricultural Science
  • Kyoto University (B.S.)
    • Agricultural Science


  • New York
  • Japan Patent Office (qualified)


  • DNA polymorphism in the Superwoman (SPW1)locus of the wild rice Oryza rufipogon and its related species,”Teranishi, C., Yoshida, K., Miyashita, N.T., Genes Genet. Syst. (2008) 83, p. 403-415.


  • Japanese

Professional Affiliations

  • American Intellectual Property Law Association (AIPLA)