Quantum Corporation (QMCO)
Nasdaq: QMCO · Computer Storage Devices · San Jose, CA · filing with the SEC since 1994
Patents
US patents through Dec 31, 2025 · PatentsView, from the USPTO’s Open Data Portal · read Oct 27, 2026996 patents granted to the 4 names below, as the owner printed on each patent when it was granted. A later sale, a lapse or an expiry is not read, so this is what was granted to Quantum Corporation’s names, not what it holds today.
Patents granted
996
956 utility, 38 design, 2 reissue, 1976 to Dec 31, 2025
Granted in 2025
6
Against 13 in 2024 and 23 in 2023
Applications published
387
2 of them in 2025
Names they are printed under
4
its own name, a subsidiary
By yearGrantedApplications published
Each pair is one calendar year. Applications are published about eighteen months after filing, so the newest years read low.
What they are aboutgrants since 2021
Computer technology41
Audio-visual technology21
Basic communication processes4
Medical technology3
Telecommunications3
IT methods for management2
Civil engineering2
Digital communication1
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name4 counted
Quantum Corporation its own name
US, as the owner printed on each patent
245 published
Quantum Corporation its own name
named as the applicant on its applications, in US
126 published
Certance LLC a subsidiary
US, as the owner printed on each patent
15 published
Advanced Digital Information Corporation a subsidiary
US, as the owner printed on each patent
1 published
Names not counted (10)
Diamond Corporation
Most of its patents print CH; this name counts in FR. 32 granted and 5 published under it are not counted.
Quantum Global Technologies LLC
PatentsView's organization Quantum Global Technologies LLC is another company: its 19 patents print Dublin, Pennsylvania and cover cleaning semiconductor process equipment, the newest, Electrochemical removal of tantalum-containing materials, granted Jun 30, 2015. QUANTUM CORP /DE/ files from Colorado, and nothing in its record ties it to this owner, whose name only adds a patent-holding word to the company's.. 19 granted and 8 published under it are not counted.
QUANTUM CORP /DE/
No country is printed for it. 0 granted and 19 published under it are not counted.
Certance LLC
No country is printed for it. 0 granted and 7 published under it are not counted.
QUANTUM IP, LLC
PatentsView's organization QUANTUM IP, LLC is another company: its 7 patents print Stuart, Florida and cover radio-frequency material detection, the newest, RF transmit and receiver antenna detector system, granted Oct 28, 2025. QUANTUM CORP /DE/ files from Colorado, and nothing in its record ties it to this owner, whose name only adds a patent-holding word to the company's.. 7 granted and 0 published under it are not counted.
QUANTUM GLOBAL TECHNOLOGIES LLC
PatentsView's organization Quantum Global Technologies LLC is another company: its 19 patents print Dublin, Pennsylvania and cover cleaning semiconductor process equipment, the newest, Electrochemical removal of tantalum-containing materials, granted Jun 30, 2015. QUANTUM CORP /DE/ files from Colorado, and nothing in its record ties it to this owner, whose name only adds a patent-holding word to the company's.. 0 granted and 4 published under it are not counted.
Diamond Corporation
Most of its patents print CH; this name counts in FR. 0 granted and 3 published under it are not counted.
Quantum Development, Inc.
PatentsView's organization Quantum Development, Inc. is another company: its 3 patents print Claymont, Delaware and Carson City, Nevada and cover software for numeric problems and a chess game, the newest, Composite chess game and method, granted Apr 30, 1996. QUANTUM CORP /DE/ files from Colorado, and nothing in its record ties it to this owner, whose name only adds a patent-holding word to the company's.. 3 granted and 0 published under it are not counted.
Quantum IP Holdings Pty Limited
Most of its patents print AU; this name counts in US. 1 granted and 2 published under it are not counted.
QUANTUM IP HOLDINGS PTY LIMITED
Most of its patents print AU; this name counts in US. 0 granted and 2 published under it are not counted.
Newest grantseach row opens the USPTO’s own copy
Newest applications publishedan application is a clue, never a plan
What it applied for, 2024 to 2025: Audio-visual technology 2 · Computer technology 1.
A patent is counted where the owner printed on it when it was granted carries the company’s own name, a former name, the name of a subsidiary its annual report lists, or its own name with a patent-holding phrase (Technology Licensing, Intellectual Property and the like), once the legal form, case and punctuation are set aside, and prints a country that name counts in. PatentsView’s data are published under the Creative Commons Attribution 4.0 licence. Source: PatentsView's granted patents and pre-grant publications, disambiguated, from the USPTO's Open Data Portal, through Dec 31, 2025, read Oct 27, 2026.