I'll research this company before writing the profile.
Let me gather more on the litigation history and corporate ownership.
Corning Gilbert Inc. (later Corning Optical Communications RF, LLC) — The entity's principal place of business is 5310 W. Camelback Road, Glendale, Arizona. Its predecessor, Gilbert Engineering Co., Inc., was a coaxial-connector maker acquired by Oak Industries in December 1992; Corning Incorporated (NYSE: GLW) acquired Oak in a $1.8 billion stock deal announced November 1999 and completed January 28, 2000, folding Gilbert into its optical-communications business as Corning Gilbert Inc. The company was later renamed Corning Optical Communications RF, LLC. It is a wholly owned subsidiary of Corning Incorporated; no standalone headcount or revenue figures for the subsidiary are published. (Corning is a large, publicly traded diversified materials company; the RF unit's financials are not broken out.)
Products / operations — An operating company, not an NPE. It designs and manufactures coaxial cable connectors and related hardware: trunk-and-distribution and drop connectors for CATV/broadband networks, compression "F" connectors (UltraSeal, UltraRange, UltraShield, UltraEase lines), adapters, terminators, and sub-miniature microwave connectors with RF performance to roughly 65 GHz, plus cable assemblies. Registered brands include GILBERT, GPO, GPPO and GMS. Manufacturing has been based in Glendale/Phoenix, Arizona, with European operations (Cabel-Con in Denmark, S.A.E. in France).
Litigation posture — Defendant only in the tracked data (0 plaintiff / 1 defendant), consistent with an operating company being sued rather than a patent assertion entity. The adversary, PPC Broadband, Inc. (f/k/a John Mezzalingua Associates), is itself a competing operating connector manufacturer, not an NPE. In practice the dispute was two-way: Corning Gilbert filed multiple PTAB inter partes reviews against PPC patents, and the cases sat in the Northern District of New York — PPC's home district (East Syracuse), not a plaintiff-friendly NPE venue.
Notable case — PPC Broadband, Inc. v. Corning Gilbert Inc. (N.D.N.Y., No. 5:11-cv-00761, later 5:13-cv-01310 and 5:14-cv-01170), over U.S. Patents 6,558,194 and 6,848,940 covering coaxial connectors. A 2015 jury found willful infringement of the UltraRange and UltraShield lines; the court subsequently awarded roughly $61 million in enhanced damages, and the Supreme Court denied Corning's cert petition on December 10, 2018. An earlier 2003 Wisconsin action found certain UltraSeal connectors infringed the '194 patent. Related proceedings included ITC Investigation No. 337-TA-938.