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Ecovyst Inc. (ECVT)

NYSE: ECVT · Chemicals & Allied Products · Wayne, PA · filing with the SEC since 2017
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Patents

US patents through Dec 31, 2025 · PatentsView, from the USPTO’s Open Data Portal · read Oct 27, 2026

9 patents granted to the 5 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 Ecovyst Inc.’s names, not what it holds today.

Patents granted
9
9 utility, 1976 to Dec 31, 2025
Granted in 2025
3
Against 1 in 2024 and 1 in 2023
Applications published
11
3 of them in 2025
Names they are printed under
5
a subsidiary, its own name
By yearGrantedApplications published
'17'19'20'22'23'24'25
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
Chemical engineering7
Macromolecular chemistry, polymers1
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name5 counted
CHEM32, LLC a subsidiary
US, as the owner printed on each patent
5 granted
2 published
ECOVYST CATALYST TECHNOLOGIES LLC a subsidiary
US, as the owner printed on each patent
3 granted
2 published
ECOVYST INC. its own name
named as the applicant on its applications, in US
0 granted
4 published
CHEM32, LLC a subsidiary
named as the applicant on its applications, in US
0 granted
3 published
Ecovyst, Inc its own name
US, as the owner printed on each patent
1 granted
0 published
Newest grantseach row opens the USPTO’s own copy
GrantedPatentTitleFieldOwner as printed
Aug 19, 202512,390,803Methods of treating and sulfiding hydroconversion catalystsChemical engineeringCHEM32, LLC
Jul 29, 202512,370,529Method for manufacturing a supported tantalum catalystChemical engineeringECOVYST CATALYST TECHNOLOGIES LLC
May 20, 202512,304,975Chromium-on-silica catalysts and methods of making the sameMacromolecular chemistry, polymersECOVYST CATALYST TECHNOLOGIES LLC
Jul 30, 202412,048,915Method for manufacturing a supported tantalum catalystChemical engineeringECOVYST CATALYST TECHNOLOGIES LLC
Nov 21, 202311,819,839Methods of sulfurizing metal containing particlesChemical engineeringCHEM32, LLC
Sep 13, 202211,439,998Methods of treating and sulfiding hydroconversion catalystsChemical engineeringCHEM32, LLC
Mar 22, 202211,278,875Direct synthesis of metal-containing CHA zeolitesChemical engineeringEcovyst, Inc
Mar 8, 202211,266,964Methods of sulfurizing metal containing particlesChemical engineeringCHEM32, LLC
May 14, 201910,286,373Methods of sulfurizing metal containing particlesChemical engineeringCHEM32, LLC
Newest applications publishedan application is a clue, never a plan
PublishedApplicationTitleFieldOwner as printed
Sep 4, 20252025/0276946CATALYST FOR THE PRODUCTION OF 1,3-BUTADIENE HAVING HIGH ACTIVITYChemical engineeringECOVYST INC.
Sep 4, 20252025/0276305CATALYST FOR THE PRODUCTION OF 1,3-BUTADIENE GIVING A HIGH YIELD BASED ON A SUPPORT COMPRISING ALUMINIUM AND SODIUMChemical engineeringECOVYST INC.
May 15, 20252025/0154295METHOD OF PREPARING A TITANIUM-MODIFIED CR/SILICA CATALYSTMacromolecular chemistry, polymersECOVYST INC.
Oct 10, 20242024/0335819METHOD FOR MANUFACTURING A SUPPORTED TANTALUM CATALYSTChemical engineeringECOVYST CATALYST TECHNOLOGIES LLC · patent 12,370,529 granted from it
Nov 16, 20232023/0365420DESILICATED SMALL CRYSTAL ZSM-5 AND METHOD OF MAKING THE SAMEMaterials, metallurgyECOVYST INC.
Jul 13, 20232023/0219074METHODS OF TREATING AND SULFIDING HYDROCONVERSION CATALYSTSChemical engineeringCHEM32, LLC · patent 12,390,803 granted from it
Aug 4, 20222022/0241755METHOD FOR MANUFACTURING A SUPPORTED TANTALUM CATALYSTChemical engineeringECOVYST CATALYST TECHNOLOGIES LLC · patent 12,048,915 granted from it
Jun 16, 20222022/0184575METHODS OF SULFURIZING METAL CONTAINING PARTICLESChemical engineeringCHEM32, LLC · patent 11,819,839 granted from it
Jul 9, 20202020/0215526METHODS OF TREATING AND SULFIDING HYDROCONVERSION CATALYSTSChemical engineeringCHEM32, LLC · patent 11,439,998 granted from it
Jul 18, 20192019/0217266METHODS OF SULFURIZING METAL CONTAINING PARTICLESChemical engineeringCHEM32, LLC · patent 11,266,964 granted from it
What it applied for, 2024 to 2025: Chemical engineering 3 · Macromolecular chemistry, polymers 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.

SI Assistanton ECVT · research, not advice