Contract analysis

I. Purpose and Executive Summary The purpose of this memorandum is to set forth a detailed phase-based litigation budget for Matter No. 1014-00003, Optiwave Semiconductor Corp. v. Lumos Photonics, Inc., Case No. 5:22-cv-03417-EJD (N.D. Cal.), and to track actual expenditures against the Board-approved budget of $4.2 million through trial. This memorandum was originally prepared in September 2022 and has been updated

II. Engagement Team and Billing Rates A. Staffing. The Calderwood & Harkness team assigned to this matter was selected for their deep technical expertise in semiconductor and photonics patent litigation, their familiarity with the practices and procedures of the Northern District of California Patent Local Rules, and their prior experience representing OWS and its portfolio companies in intellectual property matters.

III. Phase-Based Budget — Original (September 2022) This section presents the original phase-based budget as prepared in September 2022. The budget is organized into seven litigation phases, each corresponding to a distinct stage of the proceedings. The phase structure is consistent with the Firm's standard approach to litigation budgeting in patent cases in the Northern District of California and is designed to prov

IV. Actual Spend-to-Date — September 2022 Snapshot As of the date of the original memorandum (September 15, 2022), actual expenditures on the matter were as follows: Period Covered: May 12, 2022 (engagement date) through September 15, 2022 (approximately four months of active work). C&H Professional Fees Billed: Approximately $385,000. This figure reflects professional time spent on Phases 1 and 2 (both substantially

V. January 2023 Update — Revised Actual Spend and Forecast A. Actual Spend Through December 31, 2022 This section provides a detailed accounting of actual expenditures on the matter from the date of engagement (May 12, 2022) through December 31, 2022, encompassing approximately seven and one-half months of active litigation. C&H Professional Fees. Total C&H professional fees billed through December 31, 2022 are appro

1. Unanticipated Briefing. The Court's grant of leave for Lumos to file a Sur-Reply Claim Construction Brief on January 19, 2023 was not anticipated in the original budget. While the Sur-Reply itself did not require a formal response, it necessitated careful review and analysis to identify new arguments and assess whether they warranted supplemental presentation at the hearing. The additional cost attributable to thi

2. Extended Inventor Depositions. The three inventor depositions (Dr. Fong, Mr. Tanaka, and Dr. Osei) ran longer than anticipated, particularly the deposition of Hideo Tanaka. Mr. Tanaka's deposition was especially complex given his dual role as a named inventor on the '567 Patent and as the inventor of prior art U.S. Patent No. 9,456,012, which Lumos has cited in support of its invalidity contentions. The interplay

3. Prosecution History Estoppel Analysis. The prosecution histories of the '567 and '678 Patents proved more complex than initially anticipated, requiring deeper analysis of the applicant arguments and claim amendments made during prosecution. In particular, an office action response filed during the prosecution of the '567 Patent included narrowing arguments that Lumos has seized upon to argue prosecution history es

VI. Key Budget Risks and Contingencies This section identifies the principal risks and contingencies that could cause actual expenditures to deviate materially from the current budget forecast. These risks are presented in order of estimated impact on the budget. A. Markman Outcome Risk The single largest variable in the remaining budget is the outcome of the Markman hearing scheduled for January 30, 2023 before Judg

VII. Comparison to Pre-Litigation Investment Analysis To provide context for the Board-approved litigation budget and to assess the economic rationale for pursuing this litigation, the following comparison to OWS's pre-litigation investment metrics is provided: Patent Portfolio Valuation. Prior to the commencement of this litigation, OWS engaged Clearpath IP Valuation Services, Inc. (Jennifer Armitage, Lead Analyst)

VIII. Recommendations and Next Steps Based on the foregoing analysis, the Firm makes the following recommendations:

1. Ongoing Budget Monitoring. Continue monitoring actual expenditures against the budget on a monthly basis, with detailed billing summaries provided to Ms. Ellison and Ms. Torres. Monthly billing summaries should be accompanied by brief narrative explanations of significant expenditures and any variances from the budget forecast.

2. Post-Markman Budget Reassessment. Following the Markman hearing on January 30, 2023, the Firm will conduct a comprehensive reassessment of the litigation budget based on the Court's claim constructions. The timing and scope of this reassessment will depend on when the Court issues its Claim Construction Order, which could be issued from the bench at the conclusion of the hearing or in a written order within weeks

3. Adverse Markman Scenario. If the Markman outcome is adverse — particularly if the Court adopts narrow constructions for the critical terms "adiabatically coupled," "continuously varying germanium concentration," "monolithically formed," and/or "co-integrated" — the Firm will prepare a revised budget memorandum that accounts for potential early settlement or voluntary dismissal scenarios. This revised memorandum wi

4. Favorable Markman Scenario. If the Markman outcome is favorable, the Firm will proceed to complete fact discovery, engage in expert discovery, and prepare for the dispositive motion phase per the current budget. The Firm will prepare a brief supplemental budget confirmation memorandum within thirty days of a favorable Claim Construction Order.

5. Retainer Replenishment. The next retainer replenishment request in the amount of $100,000 will be issued for Q1 2023, with payment due in February 2023. Ms. Ellison should ensure that the appropriate payment authorization is in place with OWS's accounts payable department.

6. Next Status Report. The next formal status report to OWS and Vantage Point is scheduled for late January or early February 2023, to be coordinated with the Markman hearing outcome. Depending on the timing of the Court's ruling, this status report may include a preliminary assessment of the claim construction results and their impact on the case strategy and budget.

IX. Appendix A: Monthly Fee Summary (May 2022 – December 2022) The following table provides a month-by-month breakdown of C&H professional fees billed, costs and disbursements, and expert fees from the date of engagement through December 31, 2022: Notable Monthly Highlights: • June 2022: Peak billing activity associated with Complaint drafting and filing. This month reflects the intensive effort required to prepare t