Firm / Organisation

Slater Matsil, LLP

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This content is provided by Slater Matsil, LLP.

Managing Partner: Ira S. Matsil
Number of partners: 10
Number of lawyers: 28 attorneys and nine patent agents
Languages: Bangla, English, Farsi, French (Canadian), Georgian, German, Gujarati, Hindi, Kiswahili, Mandarin, Russian, Shona, Spanish, Tamil, Urdu, Vietnamese

Firm Overview:
Slater Matsil is best known as one of the top patent prosecution firms in the US. The firm consistently ranks amongst the largest practices in the country in terms of number of patents issued. In 2019, Slater Matsil was ranked first in overall performance according to the Patexia Patent Prosecution Intelligence Report. In total, the firm has obtained over 13,500 US patents for clients, including some of the most patent prolific companies in the world. Slater Matsil’s legal team includes patent and trademark attorneys, patent agents, and technical advisors.
Many of the firm’s patent attorneys are experienced trial lawyers who handle cases in U.S. Federal Courts, before the Patent Trial and Appeal Board of the U.S. Patent and Trademark Office, and before the United States International Trade Commission, often in partnership with other firms. Slater Matsil’s clients include some of the world’s largest electronics and telecommunications companies and several of North America’s pre-eminent law firms.

Main Areas of Practice:
Patent Prosecution:

■Drafting and prosecuting patent applications is the core of Slater Matsil’s practice, with over forty practitioners (including attorneys, agents, and technical advisors) supporting this activity. The firm manages a significant portion of US filings for some of the world’s most prolific patent filers, including representing several clients that were amongst the top 20 U.S. filers in 2019
■The firm’s focus on quality as well as quantity is also recognized frequently by industry groups [Ranked #1 in 2016 Patent Quality Survey by IAM; Best Performing Patent Firm in 2019 rankings by Patexia] as well as by clients [TSMC’s ‘MVP Law Firm’ Award 2018]
■Slater Matsil recognizes that technical expertise is as important as legal prowess when it comes to effective patent drafting and prosecution. The firm practices its motto, ‘Fluent in Technology, Proven in Law’ every day – with nearly half of the firms’ practitioners having an advanced technical degree. In fact, many firm practitioners are inventors in their own rights, with over 200 patents issued to members of the firm
Key Clients:
■Taiwan Semiconductor Manufacturing Co.
■Huawei Technologies
■ST Microelectronics, Inc.
Contacts:
■Ira S. Matsil
Tel: 972 732 1001
Email: [email protected]
■Steven H. Slater
Tel: 972 732 1001
Email: [email protected]

Patent Litigation & Post Grant Challenges:
■Slater Matsil has a core of six partners and an equal number of associates augmented by a rotation, as needed, of nearly a dozen additional attorneys with IP litigation and post-grant challenge experience
■In IP litigation, the firm offers a wide spectrum of issue-specific and technology-centric expertise, typically as a team member of a multi-firm effort. Frequently, the firm’s involvement is due to a client’s request, but often other law firms engage Slater Matsil directly for specialized support such as pre-litigation assessments, claim construction briefing and hearings, developing invalidity defences, expert witness discovery, and the like
■In post grant challenges, Slater Matsil was one of the first firms ‘out of the gates’ in 2013 when some of the earliest petitions for Inter Partes Review (IPRs) were being filed, and demonstrated good results with all claims challenged that year being cancelled. Since then, the firm has represented both Patent Owners and Petitioners before the PTAB and has racked up an impressive record of results for its clients
Key Clients:
■Taiwan Semiconductor Manufacturing Co., Ltd. (“TSMC”)
■Xilinx, Inc.
■SMA Solar Technology AG
Contacts:
■Steven H. Slater
Tel: 972 732 1001
Email: [email protected]
■John D. Koetter
Tel: 972 732 1001
Email: [email protected]

Asia Pacific Practice Group:
■Slater Matsil’s Asia Pacific Practice Group recognizes the importance of a comprehensive IP strategy for companies seeking to enter or grow in the US market. In addition to traditional IP services (patent preparation and prosecution, portfolio management, litigation, and the like), the firm also provides practical, culturally-sensitive advice to companies seeking to navigate the complex landscape of business practices and intellectual property law in the United States. This practice group offers fluency in Mandarin and Vietnamese and familiarity with several other Asian languages
Contacts:
■Ira S. Matsil
Tel: 972 732 1001
Email: [email protected]
■Li Li, PhD
Tel: 972.732.1001
Email: [email protected]