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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Recent Developments Relative to the Written Description Requirement of the United States Patent Law

Schedule :

Partners, Philippe Signore, Grace Kim, Stephen Baxter and Yuki Onoe have been invited to hold a seminar on "Recent Developments Relative to the Written Description Requirement of the United States Patent Law," in Tokyo, Japan on September 29, 2022, hosted by AIPPI Japan. 

The seminar will present recent U.S. court cases and examples relating to the written description requirement, as codified in 35 USC 112(a). These cases and examples illustrate the recent trend to raise the bar of the written description requirement. In light of this new trend, the speakers will provide guidance to draft and prosecute applications in the U.S. in order to better satisfy the written description requirement.

The cases and examples presented in the seminar will cover different technologies, including mechanical, electrical, software, chemical, materials, and pharmaceuticals. Each technology raises its own issues relating to the written description requirement. For example, software claims must be supported by the appropriate algorithm for explaining how the claimed computer function is performed. For applications claiming ranges of chemical substances, the specification must sufficiently disclose these ranges. The introduction of negative limitations can raise questions, especially in pharmaceutical cases. The seminar will address these different issues from various technologies.

For full event details: