Elizabeth L. DeRienzo

I'll research this attorney before drafting.

Let me run a few more targeted searches.

Elizabeth L. DeRienzo — patent litigation summary

Note on sourcing: web searches for this attorney returned no firm bio page, no bar-admission or education record, no Justia/Law360/Reuters profile, and no reported decisions. The summary below rests almost entirely on the one tracked matter plus the public docket for that case. Everything I could not verify is flagged as such rather than filled in.

Specialty / focus areas. Her only tracked appearance is a defense of wireless and IoT technology: Stingray IP Solutions, LLC v. ASSA ABLOY AB, No. 2:24-cv-00159 (E.D. Tex., filed Mar. 7, 2024, before Judge Rodney Gilstrap). Stingray asserted four patents — U.S. 7,440,572; 7,441,126; 7,224,678; and 7,616,961 — covering IEEE 802.11 (Wi-Fi) and IEEE 802.15.4 (Zigbee) networking, WPA/WPA2 security, MAC-layer authentication and TKIP/MIC intrusion alerts, and tamper-resistant secure wireless LAN hardware. The accused products were connected access-control devices and smart locks sold under the ASSA ABLOY, Yale, August, Kwikset, Corbin Russwin, Sargent, and VingCard brands. That points to a wireless-standards and network-security hardware focus, though a single case is a thin basis for characterizing a whole practice, and no practice-area description from her firm could be located to corroborate it.

Side preference. The tracked record shows 0 plaintiff-side and 1 defendant-side appearance, with her listed as "Counsel" at Polsinelli. On that record she appears on the operating-company defense side, opposite a patent assertion entity (Stingray IP Solutions is characterized as a PAE in litigation coverage). One data point does not establish a side preference, and I found no evidence of NPE-side representation.

Firm context. Polsinelli is the only firm in the tracked data. No prior firm history, in-house role, or lateral move could be verified — searches for a Polsinelli attorney bio for her came back empty, as did general searches for her name in a patent-practice context. Treat the firm affiliation as sourced only to the tracked case record.

Notable cases, outcomes, and PTAB. The Stingray/ASSA ABLOY matter is the only tracked case and the only one I can name. Third-party docket trackers list it as closed, and no publicly retrieved docket entry names her as counsel of record (the visible filings are plaintiff-side appearances by Bragalone Olejko Saad and Ward, Smith & Hill). No verdict, settlement, transfer, or Federal Circuit appeal attributable to her was found. I also found no IPR, PGR, or other PTAB filings naming her as counsel; the Stingray patents do appear in PTAB petition materials from other, earlier matters, but none of that is attributable to her. Bar admissions and education: not reliably sourced, so omitted.