Contract analysis

I. EXECUTIVE SUMMARY The purpose of this memorandum is to outline all summary judgment motions that Optiwave Semiconductor Corp. ("OWS" or "Plaintiff") should consider filing in the above-captioned action, and to anticipate and prepare for all summary judgment motions that Lumicore Technologies, Inc. ("Lumicore" or "Defendant") is likely to bring. This memorandum reflects the case posture as of May 2, 2025, following

II. PROCEDURAL AND FACTUAL BACKGROUND A. Case Posture OWS filed its Complaint on April 22, 2024, asserting four United States utility patents against Lumicore: U.S. Patent No. 10,234,847 (the "'847 Patent"), U.S. Patent No. 10,891,193 (the "'193 Patent"), U.S. Patent No. 9,678,562 (the "'562 Patent"), and U.S. Patent No. 11,402,015 (the "'015 Patent"). The Complaint asserts seven counts: four counts of direct infring

III. PLAINTIFF'S AFFIRMATIVE MOTION: PARTIAL SUMMARY JUDGMENT ON INFRINGEMENT OF THE '562 PATENT A. Overview and Strategic Rationale Of the four asserted patents, the '562 Patent presents the strongest case for partial summary judgment on literal infringement. The micro-channel heat-sink structures accused of infringement are physically present in the LumiLink 400G-ZR+ and LumiLink 800G-DR8, and this fact has been co

1. Claim 1 of the '562 Patent (Independent Claim). Claim 1 is the independent claim from which Claims 4 and 6 depend. It recites a method for thermal management of a photonic integrated circuit, including, among other limitations, the use of a "micro-channel heat sink" that is "embedded" within a "silicon substrate" supporting a "photonic integrated circuit." The key disputed limitation at Markman was the term "micro

2. Claim 4 of the '562 Patent (Dependent on Claim 1). Claim 4 depends from Claim 1 and adds the limitation of a channel arrangement pattern described as a "serpentine" or "branching" micro-channel configuration. This limitation specifies the physical routing geometry of the micro-channels within the heat-sink structure. The Benchmark teardown photographs for both the LumiLink 400G-ZR+ and LumiLink 800G-DR8 clearly de

3. Claim 6 of the '562 Patent (Dependent on Claim 1). Claim 6 depends from Claim 1 and adds a thermal conductivity specification for the channel wall material, requiring that the material forming the walls of the micro-channels have a thermal conductivity above a specified threshold. This limitation ensures that the micro-channel structure effectively transfers heat from the photonic circuit to the coolant fluid. The

IV. PLAINTIFF'S AFFIRMATIVE MOTION: SUMMARY JUDGMENT ON VALIDITY OF THE '015 PATENT (PRIOR-CONCEPTION DEFENSE) A. Overview and Strategic Rationale Lumicore's principal invalidity theory for the '015 Patent is a prior-conception defense premised on internal design documents that Lumicore contends were created in 2016–2017. Lumicore asserts that these documents reflect its independent conception of the polarization-div

V. ANTICIPATED DEFENSE MOTION: SUMMARY JUDGMENT ON DOCTRINE OF EQUIVALENTS (PROSECUTION HISTORY ESTOPPEL) A. Overview of Anticipated Motion Based on Lumicore's discovery positions and the prosecution history of the '193 and '015 Patents, we anticipate that Lumicore will file a summary judgment motion seeking a ruling that OWS is barred from asserting infringement under the doctrine of equivalents ("DOE") for the foll