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This report has been updated through 22 June 2026. The information is provided for reference only and does not represent any opinion, recommendation, or endorsement.
Honeywell International Inc. is a U.S.-based industrial technology company with a patent portfolio spanning aerospace systems, industrial automation, building technologies, advanced materials, sensors, software, networking, cybersecurity, energy systems, and manufacturing technologies. Its filings cover avionics, process control systems, safety solutions, industrial equipment, connected infrastructure, sensing technologies, communications systems, and digital industrial platforms. The portfolio includes patents filed across multiple decades and jurisdictions covering a broad range of industrial, aerospace, automation, and software technologies.
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Honeywell’s patent portfolio comprises 149,161 patents distributed across 55,121 simple families and 54,550 extended families. The portfolio spans 82 jurisdictions and includes patents associated with aerospace, industrial automation, software, electronics, sensors, networking, manufacturing, energy systems, and building technologies.
Honeywell’s portfolio consists of 43,698 active assets and 105,434 inactive assets. Active holdings include 28,367 granted patents and 15,331 patent applications. Inactive assets comprise expired patents, patents expired due to term or maintenance fee non-payment, withdrawn applications, abandoned applications, and inactive applications.
Honeywell’s patents span 82 jurisdictions, with the United States accounting for the largest share of filings and grants.
Total Patents: 149,161
The portfolio includes patent assets across North America, Europe, Asia-Pacific, and other international jurisdictions. The largest concentrations are located in the United States, Europe, Japan, China, Canada, and Germany.
Honeywell’s patent portfolio includes assets across industrial systems, computing technologies, automotive systems, networking technologies, software platforms, consumer products, imaging systems, healthcare technologies, semiconductor technologies, consumer electronics, and retail-related applications.
Industrial technologies represent the largest category, followed by computer systems and components. Additional patent activity is distributed across automotive, networking, software, consumer goods, imaging, healthcare, semiconductor, and consumer electronics technologies.
Top Citing Assignees (Forward Citations)
Top Cited Assignees (Backward Citations)
Top Cited Patents (Forward Citations)
Top Citing Patents (Backward Citations)
The citation data includes references involving companies operating across aerospace, industrial automation, manufacturing, computing, energy, transportation, and electronics sectors. The largest citation volumes are associated with Honeywell, RTX, General Electric, Siemens, IBM, Boeing, Hitachi, Panasonic, Exxon Mobil, Samsung, and government entities.
Honeywell’s litigation dataset includes 563 patents that have been involved in litigation matters, 48 petitions, 106 reexaminations, and 391 Chinese Patent Reexamination Board proceedings. The dataset also includes 23 active cases, 415 inactive cases, 47 appeals, and 739 related parties.
Ownership Type
Honeywell’s patent portfolio consists of 136,154 originally assigned patents and 13,007 acquired patents. Acquired patents originate from operating companies, universities, non-practicing entities (NPEs), and other sources.
Honeywell announced that it acquired Li-ion Tamer on July 1, 2025. Li-ion Tamer is an off-gas detection solution for lithium-ion batteries and is being integrated into Honeywell’s Building Automation business.
Honeywell completed its acquisition of Sundyne on June 9, 2025 for US$2.16 billion in an all-cash transaction. Honeywell said the acquisition expands its process industry capabilities and adds to its product portfolio and aftermarket services.
Honeywell announced in May 2025 that it would acquire Johnson Matthey’s Catalyst Technologies business for £1.8 billion in cash. In February 2026, Honeywell and Johnson Matthey amended the agreement and reduced the consideration to £1.325 billion.
Honeywell International Inc. is a publicly traded company.
Honeywell International Inc.
855 S. Mint Street
Charlotte, North Carolina, US.
Honeywell’s patent portfolio includes 149,161 patents across 82 jurisdictions. The portfolio contains patent assets in industrial systems, computer systems and components, automotive technologies, networking technologies, software, consumer goods, imaging technologies, healthcare technologies, semiconductor technologies, consumer electronics, and retail-related applications.
The portfolio includes 55,121 simple families, 54,550 extended families, 227 litigated patents, and 9 challenged patents.
Honeywell’s patent portfolio contains 149,161 patents across 82 jurisdictions. The portfolio includes 55,121 simple families and 54,550 extended families.
Industrial technologies, computer systems and components, automotive technologies, networking technologies, and software represent the largest categories within the portfolio.
Honeywell’s portfolio includes 43,698 active patent assets, consisting of 28,367 active grants and 15,331 active applications.
The United States contains the largest number of patent assets, followed by the European Patent Office, WIPO filings, Japan, China, Canada, and Germany.
The litigation dataset includes 563 patents in litigation, 48 petitions, 106 reexaminations, and 391 Chinese PRB proceedings.
The portfolio contains 136,154 originally assigned patents and 13,007 acquired patents.
The citation data includes significant references involving RTX, General Electric, Siemens, IBM, Boeing, Hitachi, Panasonic, Exxon Mobil, Samsung, and government entities.
Recent transactions include Li-ion Tamer, Sundyne, and the announced acquisition of Johnson Matthey’s Catalyst Technologies business.
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