Patent Case Watch

Patent opinions from the Eastern District of Texas and the U.S. Court of Appeals for the Federal Circuit

E.D. Tex.

Sycamore IP Holdings LLC v. Teleport Communications America, LLC et al, No. 2:16-cv-00588 (E.D. Tex. Feb. 16, 2018)

Granted in Part
Summary Judgment Non-Infringement Invalidity (§ 102/§ 103)
Court
U.S. District Court for the Eastern District of Texas, Marshall Division
Case No.
No. 2:16-cv-00588, Dkt. No. 551
Decided
February 16, 2018
Judge
William C. Bryson, Circuit Judge (sitting by designation)
Document
Memorandum Opinion and Order
Docket Entry
MEMORANDUM OPINION AND ORDER re 182 MOTION for Summary Judgment ON EQUITABLE ESTOPPEL FRAUD, PATENT MISUSE, LACHES, UNCLEAN HANDS AND WAIVER (REDACTED VERSION) filed by Sycamore IP Holdings LLC, 193 MOTION for Summary Judgment Defendants' M…
Length
63 pages

From the Opinion

The passage below is extracted verbatim from the opening of the document. It has not been editorially summarized — consult the full opinion for the court's complete reasoning.

In th ese consolidated infringement actions, Plaintiff Sycamore IP Holdings LLC (“Sycamore”) filed suit against a number of defendants grouped into four cases: Case No. 2:16- cv-588, against AT&T Corp., AT&T Services, Inc., and Teleport Communications America, LLC (collectively, “AT&T”); Case No. 2:16- cv-589, against CenturyLink Communications, LLC, and Qwest Corporation (collectively, “CenturyLink”); Case No. 2:16-cv-590, against Level 3 Communications, LLC (“Level 3”); and Case No.

Download Opinion (PDF)

Source: govinfo.gov USCOURTS collection · retrieved July 23, 2026 · Report an error

Other documents in this case