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.

Yechao (Mike) Dai

Yechao (Mike) Dai

Technical Advisor
T: (703) 413-3000
F: (703) 413-2220
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Yechao (Mike) Dai is a Technical Advisor in the Electrical and Mechanical Patent Prosecution practice group where he focuses on drafting patent applications for domestic and international clients. He has experience in patent work in various technologies, including wireless communications, LTE, 4G, 5G, Internet of Things, semiconductors, and computing memories.

Prior to joining Oblon, Mike worked as a Technical Research Engineer at an IP firm in Chicago, where he focused on technical support in patent monetization and portfolio prosecution strategy for clients in various technology fields. During his graduate studies at the University of Illinois at Chicago, Mike researched next generation semiconductor structures, where he focused on Carbon Nanotube Field-Effect Transistors (CNTFETs).


  • University of Illinois at Chicago
    • Electrcal Engineering (M.S.)
    • Electrical Engineering (B.S.)


  • Chinese