Chad E. Ziegler

I'll research Chad E. Ziegler's professional background before writing the summary.

There's a potential name ambiguity. Let me investigate the Fish & Richardson Chad Ziegler and the EcoFactor v. Resideo case specifically.

Let me pin down whether the Fish & Richardson attorney is the same person as the Philadelphia patent attorney, or a different individual with the same name.

Chad E. Ziegler — Patent Litigation Practice Summary

Scope note on the record and a name-conflict caveat. This summary rests on a single tracked court appearance for Chad E. Ziegler: EcoFactor, Inc. v. Resideo Technologies, Inc., where he is listed as lead counsel for defendant Resideo at Fish & Richardson. My web verification surfaced a well-documented Chad E. Ziegler who is a Philadelphia-based registered patent attorney (USPTO Reg. No. 44273) at Flaster Greenberg, P.C. — a life-sciences/prosecution-focused practice profile that does not mention Fish & Richardson, Resideo, or the EcoFactor matters. I could not independently confirm a Fish & Richardson bio for an attorney of this name. The two may be the same person (a lateral move) or two attorneys sharing a name; I have flagged each sourced item below so you can verify before relying on it.

Specialty / focus. The one tracked litigation matter, EcoFactor v. Resideo, is a smart-home / connected-thermostat patent case: EcoFactor asserted patents directed to Wi-Fi-connected thermostat energy-management systems (e.g., U.S. Patent No. 10,534,382) against Resideo's T5/T6/T9/T10 Pro and related smart thermostats, servers, apps, and remote sensors. That places the practice in wireless/networked consumer electronics and HVAC control software territory. The separately sourced Philadelphia "Chad E. Ziegler" profile describes a broader mix running from biotech/pharma, genetics (RNAi/siRNA), sequencing/bioinformatics, AI-ML software, sensors, and mechanical/packaging — a prosecution-heavy life-sciences practice with a litigation component (CDMA/codecs, mesh-networking). If the profiles belong to different people, only the thermostat/IP-litigation characterization should be applied to the Fish & Richardson attorney.

Side preference. On the tracked record this is a one-sided, defendant-side practice (0 plaintiff / 1 defendant). The single appearance is the classic operating-company defense posture: an established manufacturer (Resideo) defending against a licensing/assertion entity (EcoFactor, a serial smart-thermostat litigant that has also sued Google, ecobee, Amazon, and others). One data point is not enough to characterize a career pattern, and the Philadelphia profile (if the same person) reflects both plaintiff-side work (e.g., a $38M Steuben Foods plaintiff verdict) and defense work. I would describe the confirmed posture as defense of operating companies against patent monetization campaigns, without claiming a general side preference.

Firm context. Per the authoritative case data, Ziegler is at Fish & Richardson on the Resideo matter. The verifiable public profile of a same-named attorney lists Flaster Greenberg (shareholder, IP Department/Patent Group) and, per one directory, a prior association with Neustel Law Offices. I could not confirm a Fish & Richardson bio or firm history for this attorney, so treat the firm-transition question as unresolved.

Notable cases, outcomes, and PTAB. The only tracked matter is EcoFactor v. Resideo, where Resideo unsuccessfully moved to transfer venue out of the Western District of Texas (the court denied transfer, weighing the co-pending EcoFactor cases and its familiarity with the technology). No disposition for the Resideo case itself is verifiable from my sources. Broader EcoFactor-campaign context: the related EcoFactor v. Google case produced a ~$20M jury verdict (affirmed on appeal), and EcoFactor has taken PTAB losses invalidating certain thermostat claims. I could not confirm Ziegler's personal involvement in any particular verdict, IPR, or appeal. The Philadelphia profile claims PTAB/IPR and Federal Circuit experience — including Inline Packaging, LLC v. Graphic Packaging Int'l (IPR2015-01609, packaging patent invalidated at the PTAB and affirmed on appeal) and IPR work in ThroughPuter, Inc. v. Microsoft Corp. — but that attribution is unverified for the Fish & Richardson attorney.

Bar / education (as sourced; verify attribution). The Philadelphia profile lists: admitted Pennsylvania (1998); registered to practice before the USPTO; U.S. Court of Appeals for the Federal Circuit; J.D., Ohio Northern University, Claude W. Pettit College of Law (1997); B.S., Biology, Albright College (1993); AIPLA and Philadelphia IP Law Association member; Chambers USA Band 3 (Intellectual Property). I could not independently confirm bar admissions or education for the Fish & Richardson litigator specifically.

Bottom line. The reliable, tracked fact is a single defendant-side, lead-counsel role for Resideo in an EcoFactor smart-thermostat suit at Fish & Richardson. Everything beyond that — technology breadth, PTAB record, bar/education, and prior firms — comes from a same-named Philadelphia patent attorney whose identity match I could not verify, and should be confirmed directly with the firm or via PACER/PTAB dockets before use.