Huntsman Corporation (HUN)
NYSE: HUN · Chemicals & Allied Products · The Woodlands, TX · filing with the SEC since 2004
Grade5.2
◀ Past 6.0● Present 5.7▶ Future 3.8
Patents
US patents through Dec 31, 2025 · PatentsView, from the USPTO’s Open Data Portal · read Oct 27, 2026659 patents granted to the 14 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 Huntsman Corporation’s names, not what it holds today.
Patents granted
659
655 utility, 4 design, 1976 to Dec 31, 2025
Granted in 2025
15
Against 14 in 2024 and 15 in 2023
Applications published
626
17 of them in 2025
Names they are printed under
14
a subsidiary, its own name
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
Macromolecular chemistry, polymers53
Basic materials chemistry9
Other special machines7
Textile and paper machines4
Chemical engineering2
Optics2
Materials, metallurgy2
Organic fine chemistry2
Machine tools1
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name14 counted
HUNTSMAN INTERNATIONAL LLC a subsidiary
US, as the owner printed on each patent. 3 more under the same name are not counted (printed in GB)
177 published
HUNTSMAN PETROCHEMICAL LLC a subsidiary
US, as the owner printed on each patent
128 published
Huntsman International LLC a subsidiary
named as the applicant on its applications, in US
132 published
HUNTSMAN ADVANCED MATERIALS AMERICAS LLC a subsidiary
US, as the owner printed on each patent
51 published
Huntsman Petrochemical LLC a subsidiary
named as the applicant on its applications, in US
88 published
Huntsman Advanced Materials Americas LLC a subsidiary
named as the applicant on its applications, in US
22 published
HUNTSMAN CORPORATION its own name
US, as the owner printed on each patent
2 published
HUNTSMAN ADVANCED MATERIALS (SWITZERLAND) GMBH a subsidiary
named as the applicant on its applications, in CH. 1 more under the same name are not counted (printed in US)
15 published
Huntsman Advanced Materials (Switzerland) GmbH a subsidiary
CH, as the owner printed on each patent. 2 more under the same name are not counted (printed in US)
6 published
Huntsman Surfactants Technology Corporation a subsidiary
US, as the owner printed on each patent
2 published
Rubicon Inc. a subsidiary
US, as the owner printed on each patent. 3 more under the same name are not counted (printed in VG, printed in JP)
2 published
Huntsman Ethyleneamines Limited a subsidiary
US, as the owner printed on each patent
0 published
TECNOELASTOMERI S.R.L. a subsidiary
IT, as the owner printed on each patent
1 published
Huntsman Advanced Materials LLC a subsidiary
US, as the owner printed on each patent. 1 more under the same name are not counted (printed in CH)
0 published
Names not counted (2)
Airstar Corporation
Most of its patents print FR; this name counts in US. 4 granted and 4 published under it are not counted.
Airstar Corporation
Most of its patents print FR; this name counts in US. 0 granted and 1 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
| Published | Application | Title | Field | Owner as printed |
|---|---|---|---|---|
| Dec 11, 2025 | 2025/0376602 | A POLYOL COMPOSITION FOR THE PRODUCTION OF POLYURETHANE FOAMS SUITABLE FOR FILLING HOLLOW CORE INSULATORS | Macromolecular chemistry, polymers | HUNTSMAN ADVANCED MATERIALS (SWITZERLAND) GMBH |
| Dec 11, 2025 | 2025/0376556 | Curable Epoxy Resin Compositions with High Glass Transition Tempature | Macromolecular chemistry, polymers | Huntsman Advanced Materials Americas LLC |
| Nov 13, 2025 | 2025/0346706 | HIGH HARDNESS THERMOPLASTIC POLYURETHANE MATERIALS HAVING GLASS TRANSITION TEMPERATURES ABOVE ROOM TEMPERATURE | Macromolecular chemistry, polymers | Huntsman International LLC |
| Oct 30, 2025 | 2025/0333372 | METHOD FOR PRODUCING SECONDARY AND TERTIARY AMINES | Macromolecular chemistry, polymers | Huntsman Petrochemical LLC |
| Oct 16, 2025 | 2025/0320327 | HIGH TEMPERATURE STABLE SANDWICH PANELS | Macromolecular chemistry, polymers | Huntsman International LLC |
| Sep 25, 2025 | 2025/0297688 | HYDRAULIC FLUID RELEASE VALVE ASSEMBLIES | Mechanical elements | Rubicon Inc. |
| Sep 25, 2025 | 2025/0297601 | HYDRAULIC PISTON PUMP ASSEMBLIES | Engines, pumps, turbines | Rubicon Inc. |
| Sep 25, 2025 | 2025/0297145 | SURFACE TOLERANT ADHESIVE | Basic materials chemistry | Huntsman Advanced Materials Americas LLC |
| Sep 25, 2025 | 2025/0297053 | Thermoplastic Polyurethane and Uses Thereof | Macromolecular chemistry, polymers | Huntsman International LLC |
| Aug 7, 2025 | 2025/0250418 | MIXTURE FOR INHIBITING THE EMISSION OF ALDEHYDES FROM POLYURETHANE FOAM FOR AN EXTENDED PERIOD OF TIME | Macromolecular chemistry, polymers | Huntsman Petrochemical LLC |
What it applied for, 2024 to 2025: Macromolecular chemistry, polymers 22 · Basic materials chemistry 5 · Organic fine chemistry 3 · Other special machines 3 · Materials, metallurgy 1 · Textile and paper machines 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.