Contract analysis

1. Purpose and Urgency of This Letter I write in my capacity as Responsible Partner for Calderwood & Harkness LLP's patent prosecution engagement with Optiwave Semiconductor Corp. ("OWS"), which was opened on February 14, 2022. The purpose of this letter is to escalate, at the General Counsel level, the increasingly urgent situation regarding imminent, irrevocable patent prosecution deadlines that will result in the

2. Summary of Imminent Critical Deadlines The following is a summary of the most critical prosecution deadlines facing OWS's pending patent application portfolio. These are organized in order of urgency and severity. 2.1 Application A1 — U.S. App. No. 17/672,204 (HIGHEST PRIORITY) Title: "Multi-Channel Silicon-Photonic Mach-Zehnder Modulator with Segmented Traveling-Wave Electrode Architecture" Status: Non-final Offi

3. Strategic Consequences of Abandonment — Application A1 The loss of Application A1 would be particularly devastating to OWS's competitive position and intellectual property strategy, and I wish to ensure that the full implications are understood at the executive level before any decision — whether active or by default through inaction — is made. As you may recall, C&H delivered a comprehensive freedom-to-operate ("

4. Portfolio Valuation Impact The financial implications of allowing critical applications to go abandoned are significant and well-documented. Graystone Valuation Advisors, LLC, which was retained by Harborview Partners in connection with its investment in OWS, issued a comprehensive patent portfolio valuation report dated April 28, 2023. The report was prepared under the direction of Rebecca Thornton, the lead enga

5. Lender Covenant Compliance Concerns I also wish to bring to your attention a concern that falls outside the scope of C&H's patent prosecution engagement but that, in our judgment, warrants immediate attention from OWS's corporate and finance counsel: the potential impact of patent application abandonment on OWS's compliance with the intellectual property covenants in its senior secured revolving credit facility. A

6. Budget Context and Authorization Request C&H fully recognizes the financial pressures underlying the Project Lighthouse budget freeze, and we appreciate the difficult operating environment that OWS has navigated over the past eighteen months. We are aware that OWS's revenue declined from $68.1 million in fiscal year 2022 to $47.3 million in fiscal year 2023, and we understand that Veltrano Capital Partners, as maj

7. C&H's Ethical Obligations and Continuing Duties I wish to be transparent about the professional obligations that compel this escalation. C&H has a continuing professional obligation to communicate to OWS the consequences of inaction on pending patent matters, regardless of the current dormancy status of the engagement or any outstanding billing disputes. This obligation exists independent of whether the client has

8. Requested Next Steps In light of the foregoing, C&H respectfully requests that OWS take the following actions on an expedited basis:

1. Immediate Written Authorization for A1 Prosecution. OWS must provide written authorization (with Veltrano Capital Partners' concurrence if required under the Project Lighthouse budget governance framework) to resume prosecution of Application A1 (U.S. Application No. 17/672,204). This authorization is needed no later than February 1, 2025, to allow adequate time for response preparation, partner review, and filing

2. Authorization for B1 Prosecution. OWS should provide authorization to resume prosecution of Application B1 (U.S. Application No. 17/814,057), with the response to the restriction requirement due April 21, 2025. While less immediately urgent than A1, this authorization should be provided promptly to allow for orderly preparation and to avoid a repeat of the current emergency posture.

3. Scheduling of Conference Call. C&H requests that a conference call be scheduled among C&H (Catherine Bloom and Christy Bauer), OWS (Marcus Whitfield and Sandra Koh), and Veltrano Capital Partners (Christine Paulsen, Operating Partner, Technology) to discuss the full docket status, budget reactivation scenarios, and strategic triage across the twelve-application family. We suggest scheduling this call during the we

4. Resolution of Outstanding Invoices and WIP. OWS should arrange for payment or a payment plan for the $22,740.00 in outstanding invoices (Invoice Nos. 2023-07-04187 and 2023-08-04187), and should review the $34,218.50 in unbilled work-in-progress for invoicing. Alan Ngo, C&H's billing partner on this matter, is available to discuss arrangements at your or Daniel Everhart's convenience.

5. Engagement of Corporate/Finance Counsel for Covenant Analysis. OWS should promptly engage its corporate and/or finance counsel to evaluate the Meridian National Bank Credit Facility covenant implications outlined in Section 5 above, including the scope of Section 5.15, the definition of "Material intellectual Property," and the advisability of proactive disclosure to Meridian.

9. Conclusion C&H remains fully committed to protecting OWS's valuable intellectual property portfolio and is ready to resume work promptly upon receipt of authorization. Our team — including Christy Bauer, who is intimately familiar with the prosecution history and the partially completed draft response for A1 — can mobilize on short notice to ensure that the critical deadlines are met. The approaching deadlines are