Sam’s practice focuses on patent litigation and counseling in the telecommunications and medical device industries. He has worked with leading technology companies in developing both domestic and international enforcement strategies that involve complex technologies. Sam has litigated patent disputes in federal district courts across the country, before the Federal Circuit Court of Appeals, in Inter Partes reviews before the Patent Trial and Appeal Board (PTAB), and in other disputed matters before the patent office. Sam also advises technology-driven companies in negotiating complex patent licenses, developing and managing IP portfolios, conducting infringement and validity studies and opinions, as well as due diligence and counseling on intellectual property issues in mergers and acquisitions.
Sam has employed his background in physics to investigate patent disputes in a wide range of the electrical, electro-mechanical, software, and optical arts, including advanced telecommunications equipment, cellular and distributed antenna systems, wireless communication protocols and products compliant with LTE, WiMAX, Wi-Fi and Bluetooth standards, medical devices, implantable defibrillators, remote patient monitoring systems, optical films, remote access over TCP/IP networks, military and commercial aircraft components, micro-electromechanical systems, projection light engines, predictive maintenance vibration analyzers, and laser systems.
Harvard Law School, JD
Wheaton College, BS. Physics, summa cum laude
Minnesota Supreme Court
US District Court for the District of Minnesota
US Court of Appeals for the Federal Circuit
US Patent and Trademark Office
DLP TV Light Engine Litigation for 3M (3M v. Infocus Et Al., 3M v. Samsung Et Al.
Phil Caspers and Sam Hamer successfully enforced a 3M patent directed to advanced light engine technology incorporating deformable mirror devices used in consumer electronics including projection TVs and projectors. The team compelled large...
Phil Caspers, Sam Hamer and Joe Winkels successfully enforced patents on behalf of CSI Technology, Inc. (an Emerson Electric Company subsidiary) relating to machinery health maintenance vibration data analyzers incorporating sigma-delta analog-to-digital converters. In...
ADC Telecommunications, Inc. v. Panduit Corp.
Our firm successfully enforced ADC patents relating to fiber optic cable routing systems against Panduit cable routing products.
ADC – Licensing Project for Client’s Core Fiber Optic Connectivity Patent Portfolio
Through study of portfolio and relevant market, developed flexible “al la carte” licensing structures with customer field of use terms to support client’s core business. Defined flexible “A La Cart” Licensing Program Defined...
Wireless Standards Litigation: LTE
Carlson Caspers investigated and enforced patents that read on the 3GPP LTE communications standards against an LTE device manufacturer and distributor. The inventions described improved strategies for channel prioritization using quality of service...
Wireless Standards Litigation: Adaptive Frequency Hopping In Bluetooth
Carlson Caspers enforced a patent that read on the Bluetooth personal area network standards against a smart phone manufacturer. The invention at issue described sophisticated frequency hopping strategies that improve coexistence with other...
$75 Million Win for Wireless OFDM Portfolio
Phil Caspers, Sam Hamer and Joe Winkels scored a $75 million win for ADC Telecommunications, Inc. Following the dot-com bubble, ADC divested its data transport business unit, but retained the patent assets. Looking...
Named on the 2024 IAM Patent 1000 list of the World’s Leading Patent Professionals
Listed in Super Lawyers® in the field of intellectual property
Best Lawyers® 2023, 2024, 2025
Litigation—Intellectual Property
Litigation—Patent
Attorney of the Year, 2022 (Groups), Minnesota Lawyer
