--- title: DRM Evidence of Use Success Story | Claim Charting for AAA Video Games description: Discover how Lumenci utilized claim charting, Evidence of Use (EoU) analysis, and technical software testing to identify DRM patent implementations in AAA video games and enhance licensing outcomes. --- [![Lumenci-logo](https://business.lumenci.com/hubfs/Lumenci-logo.svg)](https://lumenci.com) Success Story # **How Lumenci Transformed a DRM Patent into a High-Value Licensing Asset Through Technical Testing** Lumenci combined real-time software analysis, cryptographic validation, and runtime testing to uncover clear evidence of use for a DRM patent within AAA video games, enabling the client to build a stronger, evidence-backed licensing position. ![Case study](https://business.lumenci.com/hs-fs/hubfs/Case%20study.webp?width=1600&height=1067&name=Case%20study.webp "Case study") ## **CASE AT A GLANCE** Technology Domain Digital Rights Management (DRM)   Service Delivered Evidence of Use (EoU) Analysis  Outcome Strong Evidence of Use Established for High-Value Licensing ## **The Challenge:  Proving DRM Patent Implementation in AAA Games**  The client needed to establish Evidence of Use (EoU) for a DRM patent covering license-bound encryption mechanisms in modern AAA video games.   #### DRM implementations not visible in public product documentation #### Need to establish evidence of use without relying on traditional document-based analysis #### Requirement to prove encryption, license validation, and controlled runtime decryption #### Large, complex software environments with multiple files, processes, and dependencies ## **What Lumenci Delivered** Facing limited visibility into DRM internals, Lumenci assembled a multidisciplinary team spanning software forensics, cryptography, and runtime analysis. The work was executed through a disciplined investigation plan to surface defensible, product-backed evidence of use within complex AAA gaming environments, aligned to the client’s licensing objectives. ### Defining Observable Evidence Channels The team translated the patented DRM workflow into measurable system signals, pinpointing where evidence would surface—installation activity, process behavior, cryptographic calls, and file access patterns during execution. ### Installation and File Handling Analysis Lumenci instrumented the installation process to trace how the game’s assets were unpacked and persisted. The analysis identified controlled data handling behaviors, including segmented writes, indicating managed treatment of protected content. ### Encryption and Cryptographic Validation System-level inspection revealed active use of OS cryptographic libraries. The team verified encryption through observed encrypt/decrypt operations and corroborated it with entropy testing, confirming that critical assets remained encrypted on disk. ### Runtime Execution and Access Control During gameplay, Lumenci tracked when and how protected files were accessed. The findings showed decryption occurring at execution time, establishing that access to essential data was governed by runtime controls consistent with the patented DRM approach. ### Evidence Consolidation and Mapping All observations were synthesized into a structured Evidence of Use package, linking installation traces, cryptographic activity, entropy results, and runtime logs to the claimed DRM functionality in a clear, defensible manner. ## **Key Outcomes of the DRM Investigation**  The technical evidence developed by Lumenci established a credible and defensible basis for demonstrating Evidence of Use, significantly strengthening the client’s DRM patent positioning for licensing discussions.  #### Established clear Evidence of Use for DRM patent claims in AAA video game environments **Confirmed encryption of critical application data through cryptographic and entropy analysis** #### Demonstrated runtime decryption and license-controlled access to protected content #### Converted low-visibility software behavior into defensible technical evidence ## **Lumenci’s Claim Charting & Evidence of Use (EoU) Analysis** We provide expert-led claim charting and Evidence of Use (EoU) analysis tailored for patent licensing, monetization, and IP strategy. Our approach combines technical investigation with structured claim mapping to demonstrate how real-world products practice patented technologies. As part of an integrated IP services platform, our EoU and claim charting capabilities are supported by source code review, reverse engineering, and technical testing, enabling seamless execution across complex software and technology-driven matters. #### **100+ Proven Experts** #### **3200+ Source Code Reviews** #### **250+ Litigations Supported** [Claim Chart and EoU Services \>](https://lumenci.com/services/claim-charts/) [IP Litigation Support Services \>](https://lumenci.com/solutions/ip-litigation/) ## **Positive Outcome for the Client** #### The technical evidence developed by Lumenci transformed a difficult-to-enforce DRM patent into a clearly demonstrated implementation within real-world products. #### This enabled the client to position the patent as a commercially significant asset, strengthening licensing discussions and increasing confidence among potential licensees and buyers. ## **Frequently Asked Questions** ### How can Evidence of Use be established for DRM patents in software products? Evidence of Use for DRM patents typically requires direct software analysis, including installation monitoring, runtime behavior tracking, and cryptographic validation. This approach helps uncover how protected content is encrypted, accessed, and controlled during execution. ### Can Lumenci analyze encryption mechanisms in gaming and DRM systems? Yes. Lumenci conducts cryptographic analysis, entropy validation, and source code review to determine how DRM systems encrypt and protect application data across gaming, streaming, and software platforms. ### Why is technical testing important for DRM patent enforcement? DRM implementations are rarely visible in public documentation, making traditional analysis insufficient. Technical testing allows teams to observe real product behavior, validate encryption workflows, and establish defensible evidence. ### What types of evidence are used to support DRM patent licensing? Strong DRM Evidence of Use typically includes installation traces, cryptographic library activity, entropy analysis, and runtime execution logs that demonstrate how patented mechanisms operate in real products. ### Does Lumenci support licensing and monetization strategies for software patents? Yes. Lumenci supports patent licensing by developing Evidence of Use, technical claim mapping, and defensible analysis that strengthens negotiation positions and improves overall asset value. ## **Turn Your Patents Into Claim Chart–Backed, Evidence-Driven Licensing Assets** © 2026 Lumenci is not a law firm. [Privacy Policy](https://lumenci.com/privacy-policy/) [Powered by Atlas - a B2B SaaS HubSpot theme](https://www.kalungi.com/atlas-hubspot-theme-for-b2b-saas-software)