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.

Joint International Symposia on US/EU Patent Practice 2021

Schedule :

The Oblon and Maiwald firms are pleased to announce a series of joint symposia on: US and European Patent Practice – Important Aspects for Practitioners. These will take place virtually on the following dates:

1. Thursday, 20 May 2021 at 16:00 JST (09:00 CEST- 20 May; 03:00 EDT- 20 May)
2. Thursday, 10 June 2021 at 10:00 JST (03:00 CEST- 10 June; 21:00 EDT- 9 June)
3. Thursday, 1 July 2021 at 16:00 JST (09:00 CEST- 1 July; 03:00 EDT- 1 July)

Last year, we unfortunately had to cancel our joint symposia in Tokyo and Osaka due to the COVID-19 pandemic. We will instead conduct the symposia this year over a series of three online events, as travel is still restricted. Each symposium will be scheduled for 1.5 hours including a Question-and-Answer session. We hope that we will be able to return to in-person meetings with our clients in the near future!

At this 2021 series of virtual joint symposia, we will together examine current aspects of patent practice from the US and European perspectives. Each topic will consider the differences in patent practice between the US and Europe, and we will together explore strategies for navigating through these differences. In particular, the online symposia will address in detail the following three topics for today’s practitioners:

1. Third party observations – EP and US perspectives
Thursday, 20 May 2021 at 16:00 JST, online

2. Computer-implemented inventions – an update from the EP and US perspectives
Thursday, 10 June 2021 at 10:00 JST, online

3. Support for claim amendments / claim interpretation – EP and US perspectives
Thursday, 1 July 2021 at 16:00 JST, online

Oblon speakers will include: James Love, Dr. David Longo, Yuki Onoe, and Andy Ollis

If you are interested in attending, please note that the symposia will be live and will take place at the times noted above in Japan Standard Time. To register, please send an e-mail to, indicating on which of the date(s)/topic(s) you wish to attend. Please note that registration by e-mail is only possible up to 24 hours before each respective event.