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.

Carl E. Schlier

Carl E. Schlier

Partner ∙ US Office
T: (703) 413-3000
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Carl E. Schlier is a partner in the firm's Electrical Patent Prosecution and Litigation practice groups. As a former engineer and scientist for IBM Federal Systems Division, he possesses years of practical industry expertise and a deep understanding of the science and technology underlying his clients’ innovations.

Mr. Schlier practices in a wide range of electrical technologies, including non-volatile memories, flat panel displays, computer hardware, software, magnetic media and medical imaging devices. He focuses on semiconductor technology, having extensive experience in flash memories, LCD displays, and three-dimensional bonded semiconductors, and the processes used to build the devices. He also has experience in LED and optical devices, as well as automotive LED headlamp and signaling lamp systems. At IBM Mr. Schlier worked in the field of radiation effects on semiconductor devices and the development of CMOS semiconductor processes for military applications. He published several technical papers on this subject.

Mr. Schlier brings a multi-faceted approach to his client’s needs, drawing on his broad background. He has extensive experience in district court litigation, patent prosecution, counseling of infringement and validity issues, and portfolio development. His district court experience includes numerous cases defending customer defendants in multi-party actions. Mr. Schlier protects his client’s individual interests while effectively working within defense counsel groups to advance the defenses of the group.  For example, Mr. Schlier represented Japan Display in an action involving LCD panels for laptops and cell phones and represented Toshiba in actions involving LCD panels for television and laptops, PC modems, and microprocessors. All cases were resolved favorably for the client.

He has many years of experience prosecuting applications through all phases of the patent process as well as preparing infringement and validity analyses for pre-litigation and licensing activities. Mr. Schlier also develops patent portfolios through strategic claim drafting and prosecution strategies to obtain key patents covering client’s technologies. For one client, Ziptronix, Mr. Schlier developed and prosecuted the entire portfolio later acquired by Tessera for a substantial sum. Moreover, Mr. Schlier obtains strategic claims for patents to be included in a patent pool and meets with the pool administrator to obtain entry of patents in the pool.


  • George Mason University School of Law (J.D.)
  • Pennsylvania State University (M.S.)
    • Electrical Engineering
  • Pennsylvania State University (B.S., with distinction)
    • Electrical Engineering


  • Virginia
  • Registered to practice before the U.S. Patent and Trademark Office
  • U.S. District Court for the Eastern District of Virginia

Professional Affiliations

  • American Bar Association, Section of Intellectual Property Law
  • Virginia State Bar