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
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.

Stay informed with

Our Blogs

Recent U.S. Decisions Affecting Patent Claim Interpretation During Prosecution and Post-Issuance

Schedule : at Tokyo, Japan

Partners, Philippe Signore, Frank West, and Yuki Onoe have been invited to hold a seminar on “Recent U.S. Decisions Affecting Patent Claim Interpretation During Prosecution and Post-Issuance,” in Tokyo, Japan on June 29, 2023, hosted by AIPPI Japan.

The seminar will present recent U.S. court cases and examples relating to the claim interpretation. In light of these decisions, the speakers will provide guidance to draft, prosecute, and litigate applications in the U.S. in order to better secure the intended scope of the protection.

The cases and examples presented in the seminar will illustrate how the courts interpret claims based on the intrinsic evidence (the specification and claims) rather than the extrinsic evidence (dictionaries or experts). Practitioners must carefully draft the specification in order to give the claimed terms their intended meaning. For legal opinions, negotiations, and litigation purposes a careful review of the intrinsic evidence is necessary in order to properly interpret claims. The seminar will also discuss how claim interpretation can affect the determination of patent eligibility.

For full event details: