
We offer more than 150 years of accumulated experience as counsel to our clients.
About Us
Arch & Lake LLP is a boutique law firm founded in 2018 with offices in Chicago, Houston, and Bellevue. Our team of about 20 attorneys and professionals combines strong legal experience with deep technical backgrounds—many hold advanced engineering degrees in addition to law degrees. Together, we bring more than 150 years of combined experience advising innovative companies on protecting, managing, and enforcing intellectual property assets.
Over the years, we have helped clients secure more than 1,500 patents and represented companies in over 100 IP disputes, including patent, trademark, copyright, and trade secret matters before U.S. district courts, the ITC, the PTAB, and the Federal Circuit. Our team works across a wide range of technologies, including AI memory architecture, AI inference hardware, robotics systems, sensor fusion, drones, mobile devices, communication systems, and advanced video coding, helping companies turn intellectual property into a strategic business advantage.

Practice Areas
Trademarks
Technologies
Our team has expertise in various technologies, including electrical engineering, mechanical engineering, biomedical engineering, civil engineering, chemistry, computers, database systems, and others. Together, we offer more than a century of accumulated experience as intellectual property counsel to our clients.
We provide significant experience in various technical areas including
Professionals
Hao Tan is an Intellectual Property attorney with more than 10 years of experience in patent prosecution and litigation. He represents clients in front of the PTAB, district court, and Federal Circuit.
Shen Wang is an Intellectual Property attorney with extensive experiences in patent prosecution, patent litigation, client counseling and technology development and analysis.
Haoyi Chen focuses his practices on helping companies to solve their intellectual property issues from each of their business needs, including patent/trademark application and protection strategies, IP rights disputes and litigation, and trade secret protections.
Alex Liang provides legal services for domestic and foreign companies concerning China and U.S. patent litigation, U.S. import/export compliance, anti-sanctions, technology control compliance, U.S. trade secret litigation, and technology transfer & cooperation.
Peter Curtin is an experienced litigator and trial lawyer who has appeared in federal trial courts across the country in civil and criminal cases for more than twenty five years.
CJ is an experienced IP counselor and litigator having litigated patent, copyright, and trade secret cases in federal courts across the country.
Di Yu is a counsel who provides legal and business consultancy services including: Patent procurement, Trademark applications, export control analysis, merger and acquisition review, business contract review, and business development advices.
Jiyeon Yang
J.D./B.A.
Jiyeon Yang is an accomplished commercial attorney with 20+ years’ success in enterprise and consumer technology. She has extensive experience as a technology transactions and supply chain in-house counsel, including SaaS, enterprise software, professional services, marketing, privacy, and international operations
Ellen is an associate who specializes her practice in IP law, including patent prosecution, and IPR and PGR proceedings.
Alyssa is an associate attorney at Arch & Lake LLP. Her practice includes patent prosecution and litigation.
Teresa is an associate at Arch & Lake who is experienced in preparing and prosecuting patents in the areas of computer software, medical devices, mechanical devices, and telecommunications technologies.
Mr. Skebba is a counsel at Arch & Lake where he focuses on intellectual property litigation.
Chen focuses on intellectual property and patent matters, including patent prosecution and patent portfolio management.
Yu is a technology specialist with more than 10 years of patent prosecution and IP management experience in both private practice and in-house.

Contact us
Email: info@archlakelaw.com
203 N LaSalle Street
Suite 2100
Chicago, IL, 60601
Tel. 312-558-1369
2500 Wilcrest
Suite 301
Houston, TX, 77042
Tel. 346-335-9890
10900 NE 4th St
Suite 2300
Bellevue, WA 98004
Tel. 425-289-7858
Email us

Visit us
Monday - Friday 8:30-17:00
Our team provides insights, news, and information about patents, trademarks, and other intellectual property practice in the United States and worldwide.



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