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

Kasumi  Kanetaka
Alexander B. Englehart
John  Sipos
Norman F. Oblon
Nicholas  Rosa, Ph.D.
Eric W. Schweibenz
Teddy S. Gron
Long  Phan, Ph.D.
Jianping (James)  Wu
Steven B. Chang
Kevin M. McKinley
Jeffrey B. McIntyre
Eckhard H. Kuesters
Arthur I. Neustadt
Kurt M. Berger, Ph.D.
Sameer  Gokhale
Frank J. West
Tao  Feng, Ph.D.
Kevin L. Hartman, Ph.D.
Kevin Ross  Davis
John S. Kern
Jay E. Rowe, Jr., Ph.D.
Grace E. Kim
Andrew M. Ollis
Ryan W. Smith
Richard D. Kelly
Yuanyi (Alex) Zhang, Ph.D.
Stefan Uwe  Koschmieder, Ph.D.
Thomas M. Cunningham, Ph.D.
Derek  Lightner, Ph.D.
Alec M. Royka
Robert W. Downs
Chika (Teranishi) Iitoyo
Philippe J.C. Signore, Ph.D.
Carl E. Schlier
Edwin D. Garlepp
Dale M. Shaw
David M. Longo, Ph.D.
J. Derek  Mason, Ph.D., CLP
Bogdan A. Zinchenko
Robert  Tarcu
Akihiro  Yamazaki
Surinder  Sachar
Craig R. Feinberg
Elissa L. Sanford
Diane  Jones
Daniel J. Pereira, Ph.D.
Michael R. Casey, Ph.D.
James R. Love
Christopher I. Donahue
John F. Presper
Yorikatsu  Hohokabe, Ph.D.
Stephen G. Baxter, Ph.D.
Robert T. Pous
Tia D. Fenton
Marina I. Miller, Ph.D.
Christopher  Ricciuti
Colin B. Harris
Brian B. Darville
Aldo  Martinez
Jenchieh (Joseph) Yuan
Charles L. Gholz
Yuki  Onoe


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.

USPTO is Changing Policy for Electronic Retrieval of European Priority Applications

  • December 15, 2021
  • Firm News

The U.S. Patent and Trademark Office (USPTO) has announced that the World Intellectual Property Organization (WIPO) Digital Access Service (DAS) will be used to manage the electronic retrieval of European (EP) priority applications beginning on January 1, 2022.

This means that for regular U.S. utility patent applications (i.e., Paris convention or PCT bypass applications) filed with the USPTO on or after January 1, 2022, it will be necessary to provide a DAS code for each EP priority application so that the USPTO can electronically retrieve the same. Beginning on January 1, 2022, the USPTO will no longer electronically retrieve EP priority applications via Direct Bilateral Exchange with the European Patent Office (EPO). See

The USPTO is encouraging applicants to begin providing the DAS code for each EP priority application immediately, even for U.S. utility patent applications filed before January 1, 2022. According to the USPTO, this “will prepare the applicant for the full switch to the WIPO DAS. Also, having the WIPO DAS access code should reduce potential delays that may occur if electronic retrieval is attempted by the USPTO on or after January 1, 2022.” The USPTO is also encouraging applicants to review their regular U.S. utility patent applications filed before January 1, 2022, that claim priority to an EP application but did not include a DAS code, to check whether electronic retrieval of the EP priority application by the USPTO was successful. Importantly, the USPTO is advising applicants “that they continue to bear the ultimate responsibility for ensuring that the priority document is filed by the time limit set forth in 37 CFR [§] 1.55.”

Detailed information about the USPTO’s announcement is available here: