Sigma Switches Plus, Inc.
Company overview. Sigma Switches Plus, Inc. (commonly "Sigma Switches") is a privately held manufacturer headquartered at 4703 Wyland Drive, Unit A, Elkhart, Indiana — the heart of the U.S. RV manufacturing corridor. Directories variously date its founding to 1983; the company is run by the Rothbauer family (Dan Rothbauer, CEO; Brian Rothbauer, president/owner). Third-party data providers put headcount at roughly 9–25 employees and annual revenue in the low single-digit millions (estimates range from about $2.8M to $3.5M); no public filings confirm exact figures. Its website, sigmaswitches.com, is also associated with a related entity, Destin Products Inc., at the same Elkhart address.
Products / operations. Sigma Switches is an operating company that manufactures and distributes electrical switches — chiefly dust-resistant rocker switches with self-cleaning ("wiping-action") contacts, plus push-button, toggle, miniature, illuminated, waterproof (IP-rated), and heavy-duty double-pole switches, indicator lights, and switch panels. It also supplies metal-stamped and injection-molded parts and complete assemblies to spec. Target industries include appliance, automotive, marine, RV/mobile home, lawn & garden, medical, and scientific equipment. Products carry UL, CSA, and VDE certifications.
Patent-litigation posture. The company is a practicing manufacturer asserting its own patents, not an NPE. Its tracked docket shows one case as plaintiff and zero as defendant. Notably, the asserted patents cover LED light-strip mounting hardware — not switches — reflecting an apparent newer product line. Patents in suit (e.g., U.S. Patent Nos. 12,181,127 and 12,352,411/12,352,412, all issued 2025) are assigned to Sigma Switches Plus, with Brian Rothbauer listed as inventor. The suit was filed in the Northern District of Indiana (a home-court venue, not a plaintiff-friendly outlier like E.D. Tex.).
Notable case. The single tracked matter is Sigma Switches Plus, Inc. v. ABC Marketing, Inc. (No. 3:25-cv-00888, filed Oct. 28, 2025). Per the complaint analysis, Sigma alleges ABC Marketing's "Stellar Lighting" "LineLite Track" and end cap — marketed for RV and specialty-vehicle OEM LED lighting — infringe its LED light-holding system patents. Discovery and claim-construction schedules were set in early 2026.