Cytek Biosciences, Inc.

Company Overview

Cytek Biosciences, Inc. (NASDAQ: CTKB) is a publicly traded life sciences technology company founded in 1992. Headquartered in Fremont, California, the company specializes in cell analysis solutions. Formerly known as Cytoville, Inc., it became Cytek Biosciences in 2015 following a merger with Cytek Development Inc. As of early 2026, the company employed approximately 678-702 people and reported trailing twelve-month revenue of around $204 million. Its market capitalization was approximately $595 million as of May 2026.

Products and Services

Cytek Biosciences develops, manufactures, and supplies cell analysis instruments, software, and reagents for biomedical research and clinical applications. The company's core offering is its patented Full Spectrum Profiling (FSP) technology, which provides high-resolution and high-sensitivity cell analysis. Its major product lines include the Cytek Aurora and Northern Lights systems, which are full-spectrum flow cytometers, and the Cytek Aurora CS, a cell sorter. The company also offers other instruments like the Amnis and Guava brands of flow cytometers, along with proprietary cFluor reagents, software such as SpectroFlo, and related support services. Its customers include pharmaceutical and biopharma companies, academic research centers, and clinical research organizations.

Patent-Litigation Posture

Based on the available data, Cytek Biosciences is an operating company that appears to be in an active, two-way patent dispute with a direct competitor. The company has been involved as both a plaintiff and a defendant in patent litigation. The tracked cases show one suit where Cytek is the plaintiff against Beckman Coulter, Inc. at the U.S. Patent and Trademark Office's Patent Trial and Appeal Board (PTAB), and another where it is the defendant in a patent infringement case brought by Beckman Coulter in the U.S. District Court for the District of Delaware. This pattern indicates a competitive dispute between two operating companies rather than typical non-practicing entity (NPE) activity.

Notable Cases and Context

The company's tracked litigation involves direct competitor Beckman Coulter, Inc. In the district court case Beckman Coulter, Inc. v. Cytek Biosciences, Inc., Beckman Coulter alleges that Cytek's Aurora flow cytometers infringe its patents related to optical technology. Concurrently, Cytek has challenged the validity of a Beckman Coulter patent at the PTAB in the proceeding Cytek Biosciences, Inc. v. Beckman Coulter, Inc. This litigation highlights the competitive landscape in the market for advanced flow cytometry and cell analysis technologies.