King & Spalding
Firm overview:
Georgia-headquartered global firm King & Spalding offers a comprehensive patent capability, supporting clients across the full lifecycle of their innovations. Its patent prosecution, counselling and IP due diligence teams advise on the protection and commercialisation of a broad array of technologies, and the firm has secured and managed hundreds of US and international patents and trademarks for clients worldwide.
The firm’s full-service IP practice is known for its combination of first-chair trial lawyers and technical specialists. King & Spalding regularly appears in patent litigation before federal district courts nationwide, including the Western and Eastern Districts of Texas, the District of Delaware, and the Central and Northern Districts of California. The team has experience in post-grant proceedings, representing clients in inter partes reviews before the Patent Trial and Appeal Board, as well as matters before appellate courts and the International Trade Commission.
Litigators at King & Spalding act across a wide spectrum of industry sectors. These include life sciences, telecommunications, computer systems, biotechnology, media and entertainment, consumer products, oil and gas, cosmetics, and food and beverage, underscoring the breadth of technical and commercial insight within the practice.
Team overview:
In Washington, DC, Jeffrey Telep focuses on the litigation of high-profile international trade disputes and leads King & Spalding’s Section 337 practice before the International Trade Commission. He has handled numerous significant patent matters and is widely recognised for his command of ITC proceedings.
A significant addition to the firm over the past year is that of Neel Chatterjee, who joined from Goodwin in July 2025. Chatterjee now co-heads the IP Litigation Group at King & Spalding, bringing experience of leading matters for some of Silicon Valley’s most well-known technology companies including NVIDIA, Oracle, eBay and Facebook.
Key matters:
- Causam Enterprises v International Trade Commission (Federal Circuit, 2025)
King & Spalding represented Causum Enterprises in a patent dispute before the ITC. Causum alleged that Resideo Smart Homes Technology and its domestic affiliate were infringing a patent through the sale of “smart” thermostats.
The ITC returned a verdict of non-infringement but took no position on the issue of patent ownership, which was raised by the respondents.
In an October 2025 judgment, the US Court of Appeals for the Federal Circuit agreed with Causum that it did own the patent-in-suit, but affirmed a PTAB holding that it was unpatentable.
Clients:
Causum Enterprises
