This analysis explores the patent landscape of the LEGO Group, highlighting its innovation strategy, key…
Edison International Patent Landscape Analysis
This analysis explores the patent landscape of Edison International, highlighting its innovation focus, filing trends, and strategic approach within the energy and utility sector. It provides key insights into how the company leverages intellectual property to support technological advancement and maintain a competitive edge in a rapidly evolving industry.
Technology Insight Report
Edison International Patent Landscape Analysis: Mapping Intellectual Property, Innovation Trends & Global IP Strategy
A comprehensive patent landscape and IP portfolio intelligence report covering 523 patent publications, spanning decades of innovation in electrical utility infrastructure, grid technology, power management, and smart energy systems.
523
Total Patents
195
Patent Families
20+
Jurisdictions
21
Active / Alive
62+
Years of IP History
811
Max Citation Count
Executive Summary: Edison International Intellectual Property & Patent Portfolio Overview
Edison International, the parent company of Southern California Edison (SCE), has built a formidable intellectual property portfolio spanning over six decades of technological innovation. This patent landscape analysis, prepared by IIPRD as part of its ongoing patent technology landscape intelligence series, examines a curated dataset of 523 patent publications associated with Edison International and its affiliates across more than 20 global jurisdictions.
The IP portfolio reflects Edison's strategic footprint across critical domains including electrical grid infrastructure, smart energy management, power generation and distribution, valve and flow-control systems, electrification of transportation, and advanced metering infrastructure (AMI). Classified primarily under the Cooperative Patent Classification (CPC) sections F (Mechanical Engineering), G (Physics & Instrumentation), and H (Electricity & Electronics), the portfolio illustrates a vertically integrated approach to utility-sector innovation.
From a legal status perspective, the majority of patents have reached the end of their statutory life — with 285 lapsed and 198 expired. However, the emergence of 12 active grants and 9 pending applications filed as recently as 2023–2024 in areas such as EV charging infrastructure, smart metering, and fire-detection systems signals a deliberate IP renewal strategy aligned with contemporary energy transition priorities.
The geographic breadth of the portfolio — spanning the United States, Japan, Canada, Germany, the United Kingdom, Korea, and Australia — reflects Edison's historically global patent filing strategy and its engagement with international standardization bodies. This landscape report provides actionable intelligence for IP strategists, technology transfer professionals, innovation policy researchers, and competitive intelligence teams engaged in the utility, energy, and smart grid sectors.
Patent Filing & Publication Timeline Analysis
Annual Patent Priority, Application & Publication Trends — Edison International IP Portfolio
Year-wise distribution across the full portfolio lifecycle (1962–2025)
Priority Date
Application Date
Publication Date
Strategic IP Filing Waves: Decoding Edison International's Patent Activity Cycles in Energy & Utility Innovation
The temporal analysis of Edison International's patent filing activity reveals two distinct innovation peaks. The most pronounced surge occurred during the early 1980s, with priority filings peaking at 51 in 1983 and application filings reaching 48 in 1983–1984. This wave reflects Edison's aggressive R&D investment during a period of national energy reform following the oil crises. A secondary wave is observable in the 2002–2008 period, coinciding with early smart grid technology development and regulatory reforms under the Energy Policy Act. The recent resurgence of patent filings in 2023–2024, including applications in EV charging, signal processing, and fire-detection technologies, strongly suggests a deliberate IP strategy refresh aligned with California's energy transition mandates and the broader global push toward grid decarbonization. This cyclical filing pattern reflects a technologically responsive portfolio management approach rather than opportunistic filing behavior.
CPC Classification — Top Patent Technology Classes
Cooperative Patent Classification revealing Edison's core technology domains
IPC Classification — International Patent Classification Coverage
IPC-based technology mapping for Edison's global innovation positioning
Technology Classification Intelligence: CPC & IPC Analysis Reveals Edison International's Core R&D Focus in Electrical Systems, Flow Control, and Grid Infrastructure
The CPC and IPC analyses together provide a high-resolution view of Edison International's technological priorities. At the CPC level, G05D-016/20/13 (pressure control systems) dominates with 25 filings, followed by H02J-007/96 (battery charging systems) with 21, and F16K-001/226 (gate valves and flow control) with 14 patents — reflecting the foundational importance of flow regulation and power distribution in utility operations. At the IPC level, H02J-007/10 (battery charging systems) leads with 21 patents. The strong presence of F04D (centrifugal pumps), G01D (measuring instruments), and G08C (transmission of measurement values) across both classification systems reveals a portfolio equally technical in its physical infrastructure dimensions as in its measurement and monitoring capabilities — hallmarks of a vertically integrated energy utility seeking end-to-end operational control through patented intellectual property. This dual-classification correlation is particularly valuable for white-space analysis and freedom-to-operate assessments in adjacent technology domains.
Geographic Patent Coverage & Jurisdictional Intelligence
Global Patent Filing Distribution — Edison International Jurisdictional Coverage
Country-wise patent publication count highlighting Edison's geographic IP strategy
National Office
Regional / PCT
International IP Footprint Analysis: Edison International's Patent Filing Strategy Spans Key Innovation Economies and Emerging Energy Markets
The geographic distribution underscores a global IP strategy anchored in major industrialized economies. The United States dominates with 177 publications (33.8% of the portfolio), consistent with Edison's primary operational base in California. Japan (41), Canada (40), and Germany (39) form the second tier — nations with advanced utility infrastructure and active energy sector R&D ecosystems. The presence of PCT (WO) filings (26) and EPO (EP) filings (20) indicates Edison's use of cost-efficient multi-jurisdictional routes for higher-priority inventions. The portfolio's reach into Brazil, India, Mexico, China, and Poland, though modest, reflects forward-looking IP protection in regions increasingly central to global energy transition investments. For technology transfer professionals and licensing specialists, this jurisdictional map provides a useful baseline for valuing Edison's patent portfolio and identifying geographies with potential enforcement or licensing opportunities.
Patent Legal Status Distribution
Portfolio lifecycle assessment: Pending, Granted, Revoked, Expired, Lapsed
Technology Domain Overview — CPC Section Classification
High-level technology categorization by CPC section across engineering disciplines
Patent Portfolio Health & Technology Breadth: Legal Status Lifecycle Analysis and Domain Mapping of Edison International's IP Assets
With 285 lapsed patents (54.5%) and 198 expired patents (37.9%), approximately 92% of the analyzed portfolio has completed its statutory protection period — a predictable outcome for a utility company with patent activity dating back to the 1960s. The 19 revocations indicate a historically limited challenge rate, suggesting robust prosecution quality. Critically, the 12 active grants and 9 pending applications, concentrated in post-2020 priority dates, represent Edison's current commercialization-ready IP in EV infrastructure and smart grid sensing. On the technology domain axis, CPC Section F (Mechanical Engineering, 173 patents) leads the portfolio, encompassing valve systems, pump mechanisms, and fluid control innovations. Section G (Physics & Computing, 127) reflects Edison's investments in metering, instrumentation, and network communications, while Section H (Electricity & Electronics, 109) captures battery management, charging technologies, and power electronics — the fastest-growing frontier in the current portfolio.
Patent Family & Citation Intelligence
Patent Family Size Distribution — Multi-Jurisdictional Filing Strategy Analysis
Grouping of patents into families indicating geographic coverage and technological scope of each core invention
Patent Family Intelligence: Decoding Edison International's Multi-Jurisdictional IP Filing Strategy Through Family Size Analysis
Patent family analysis reveals which inventions an organization considered important enough to protect across multiple jurisdictions — a proxy for commercial significance and strategic value. In Edison International's portfolio, 112 out of 195 unique patent families (57.4%) contain a single member, suggesting either jurisdiction-specific inventions or early-stage filings not subsequently internationalized. Families with 5+ members (26 families) represent Edison's highest-priority inventions, where the company invested in multi-jurisdictional prosecution across Asia, Europe, and the Americas. These large-family patents are the most commercially significant from a licensing, enforcement, and valuation standpoint. For competitive intelligence practitioners, isolating these large-family patents provides the highest signal-to-noise ratio when assessing Edison's core technology investments and potential licensing assets — a foundational step in any IP due diligence or technology transfer exercise.
Spotlight: Recent & Active Patent Highlights
The following four patents represent Edison International's most recent active intellectual property assets — pending or granted filings at the frontier of the company's current innovation strategy.
Pending · EV Technology
Electric Vehicle Charging Network Infrastructure & Load Balancing Systems
Publication: US20250074236 A1
CPC Class: B60L-053/53 (EV Charging)
Priority: August 28, 2023
Citations: 2 forward citations
Published: March 6, 2025 · PENDING
Granted · Smart Grid
Advanced Display & Sign Technology for Grid Communication Infrastructure
Publication: KR10-2750028 B1
CPC Class: G09F-013/22 (Illuminated Signs)
Priority: February 26, 2024
Citations: Active Grant
Published: January 3, 2025 · GRANTED
Pending · Fire Safety
Intelligent Fire & Smoke Detection Systems for Utility Infrastructure Protection
Publication: CN120599754 A
CPC Class: G08B-017/06 (Smoke Detectors)
Priority: February 28, 2024
Citations: Under Examination
Published: September 5, 2025 · PENDING
Pending · Antenna Systems
Advanced Antenna Configuration for Smart Metering & Grid Communication Networks
Publication: CN120601120 A
CPC Class: H01Q-001/12 (Antenna Systems)
Priority: February 29, 2024
Citations: Under Examination
Published: September 5, 2025 · PENDING
Innovation Trajectory: Edison International's Evolving Intellectual Property Strategy and Future Technology Roadmap
60+
Years of IP History
195
Unique Patent Families
8
CPC Technology Domains
2024
Most Recent Priority Year
Edison International's intellectual property trajectory reflects the evolution of a century-old utility company navigating successive waves of technological transformation. In its earliest phase (1960s–1980s), the portfolio was dominated by foundational utility hardware innovations — valve systems, pump mechanisms, incandescent lamp technology, and grid protection devices — representing the engineering backbone of mid-20th-century electrical infrastructure.
The second innovation wave (1990s–2008) saw Edison pivot toward digital instrumentation, measurement science, and early telecommunications-integrated grid monitoring. Patents in CPC classes G01R (electrical measurement), G08C (telemetry), and H04W (wireless communications) reflect this transition — aligning with national smart grid initiatives and the early stages of SCADA and AMI deployment across Southern California's service territory.
The current and emerging third phase (2020–present) represents Edison's most strategically significant IP pivot: toward clean energy infrastructure and electrification. The pending portfolio in B60L (EV charging systems), H02G (cable management), H01Q (antenna systems for smart metering), and A62B (safety systems) signals deliberate alignment with California's ambitious 2035 zero-emission vehicle mandates. Future innovation clusters are expected around grid resilience technologies, wildfire mitigation systems, distributed energy resource management (DERMS), and advanced power electronics for grid-edge devices.
For inquiries regarding customized patent landscape reports, competitive IP intelligence, or white-space analysis in the tobacco technology or adjacent sectors, please contact IIPRD at [email protected] or through www.iiprd.com.
Disclaimer: This article is published for informational and exemplary representation purposes only, based on publicly available patent databases and information. The article does not constitute legal opinion, patent counsel, or IP strategy advice, and IIPRD does not warrant the accuracy, completeness, or currency of the data represented. The analysis is exemplary in nature. Neither IIPRD nor any of its Partners, Employees, Associates, and/or Affiliates assume or admit any liability arising from this article or the information provided therein. Readers seeking actionable IP legal advice should consult qualified patent professionals.
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