I'll research this entity, which appears from the case name to be an individual rather than a company.
Note on entity type: "Ronald C. Fritz" is an individual person, not a corporation — the case data (1 case, 0 as plaintiff, 1 as defendant) reflects a natural person named in litigation, not a company.
Who he is. Ronald C. Fritz (March 25, 1937 – March 6, 2024) was an American entrepreneur and the founder of Identatronics, an identification-card business incorporated in 1973 in the Chicago area (originally 425 Lively Blvd., Elk Grove Village, IL; later 2510 Route 176, Crystal Lake, IL). This linkage comes from a published obituary crediting him with creating Identatronics and from the litigation record, which names "Ronald C. Fritz and Identatronics, Inc." as co-defendants. I could not independently verify his net worth, personal holdings, or any other business interests.
The related operating company. Identatronics, Inc. is a private manufacturer of credential/ID products: photo ID cards and badges, magnetic-stripe and barcode badges, card materials, laminators, die cutters, cameras, encoders, and the vIDix software suite (photo ID, access control, visitor management). Third-party directories estimate 21–50 employees and roughly $1–5M in annual revenue; those figures are unverified estimates, not filed financials. In 2001 the company was acquired by Ban-Koe Companies.
Litigation posture. Fritz has no plaintiff-side patent cases in the data. His single tracked appearance is defensive: Laminex, Inc. v. Ronald C. Fritz et al., in the U.S. District Court for the Northern District of Illinois, Eastern Division (389 F. Supp. 369, 1974). This is the profile of an operating-business defendant, not an NPE asserting an acquired portfolio.
Case context. Laminex, a competing maker of identification-card materials, sued Fritz and Identatronics for infringement of the Hannon '171 and '497 patents covering laminated plastic identification cards and card-pack materials. The court found no infringement on several grounds — including that the defendants merely purchased the core material rather than performing claimed process steps, and that their products lacked the claimed "protective envelope" and matching melt-index bonding layers.
Sources: obituary (nifsinc.com); Laminex, Inc. v. Fritz, 389 F. Supp. 369 (N.D. Ill. 1974) via CourtListener; Identatronics company listings (Salary.com, ThomasNet, sourcesecurity.com).