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Quaker Houghton (KWR)

NYSE: KWR · Miscellaneous Products of Petroleum & Coal · Conshohocken, PA · filing with the SEC since 1994
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Patents

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

114 patents granted to the 12 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 Quaker Houghton’s names, not what it holds today.

Patents granted
114
113 utility, 1 design, 1976 to Dec 31, 2025
Granted in 2025
2
Against 5 in 2024 and 3 in 2023
Applications published
103
2 of them in 2025
Names they are printed under
12
a subsidiary, its own name
By yearGrantedApplications published
'11'12'13'14'15'16'17'18'19'20'21'22'23'24'25
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
Basic materials chemistry9
Surface technology, coating4
Measurement1
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name12 counted
DIPSOL CHEMICALS CO., LTD. a subsidiary
JP, as the owner printed on each patent
52 granted
34 published
QUAKER CHEMICAL CORPORATION its own name
US, as the owner printed on each patent
20 granted
16 published
HOUGHTON TECHNICAL CORP. a subsidiary
US, as the owner printed on each patent
18 granted
13 published
DIPSOL CHEMICALS CO., LTD. a subsidiary
named as the applicant on its applications, in JP
0 granted
16 published
Coral Chemical Company a subsidiary
US, as the owner printed on each patent
10 granted
2 published
Houghton Technical Corp. a subsidiary
named as the applicant on its applications, in US
0 granted
10 published
AC PRODUCTS, INC. a subsidiary
US, as the owner printed on each patent
5 granted
3 published
Korea Houghton Corporation a subsidiary
KR, as the owner printed on each patent
4 granted
2 published
Nippon Quaker Chemical, Ltd. a subsidiary
JP, as the owner printed on each patent
3 granted
3 published
QUAKER CHEMICAL CORPORATION its own name
named as the applicant on its applications, in US
0 granted
3 published
Toeisangyo Co., Ltd. a subsidiary
JP, as the owner printed on each patent
2 granted
0 published
Nippon Quaker Chemical, Ltd. a subsidiary
named as the applicant on its applications, in JP
0 granted
1 published
Names not counted (5)
Sutai Co, Ltd., K.K.
Most of its patents print US; this name counts in JP. 2 granted and 1 published under it are not counted.
Surface Technology Holdings Ltd.
Most of its patents print US; this name counts in GB. 0 granted and 2 published under it are not counted.
QUAKER CHEMICAL CORP
Most of its patents print IT; this name counts in US. 1 granted and 0 published under it are not counted.
SIFCO Applied Surface Concepts, LLC
Most of its patents print FR; this name counts in US. 0 granted and 1 published under it are not counted.
Sutai Co, Ltd., K.K.
Most of its patents print TW; this name counts in JP. 0 granted and 1 published under it are not counted.
Newest grantseach row opens the USPTO’s own copy
GrantedPatentTitleFieldOwner as printed
Sep 30, 202512,428,745Method and system for electroplating parts with metalSurface technology, coatingDIPSOL CHEMICALS CO., LTD.
Jan 28, 202512,209,229Method and compositions for cleaning aluminum cansBasic materials chemistryHOUGHTON TECHNICAL CORP.
Oct 1, 202412,104,256Chemical method to decrease oxide scale generation in hot rollingBasic materials chemistryQUAKER CHEMICAL CORPORATION
Sep 24, 202412,098,349Systems and methods for removing micro-particles from a metalworking fluidBasic materials chemistryQUAKER CHEMICAL CORPORATION
Sep 17, 202412,091,632Systems and methods for removing micro-particles from a metalworking fluidBasic materials chemistryQUAKER CHEMICAL CORPORATION
Jul 2, 202412,024,649Methods of reducing the adhesion of a maskantBasic materials chemistryAC PRODUCTS, INC.
May 21, 202411,987,888Trivalent chromium chemical conversion treatment liquid for zinc or zinc alloy base and chemical conversion treatment method using the sameSurface technology, coatingDIPSOL CHEMICALS CO., LTD.
May 9, 202311,643,732Corrosion-resistant trivalent-chromium chemical conversion coating and solution for trivalent-chromium chemical treatmentSurface technology, coatingDIPSOL CHEMICALS CO., LTD.
Feb 7, 202311,573,109Measurement of fluid parametersMeasurementHOUGHTON TECHNICAL CORP.
Jan 31, 202311,566,201Plunger lubricant for die casting and method of applying the sameBasic materials chemistryNippon Quaker Chemical, Ltd.
Newest applications publishedan application is a clue, never a plan
PublishedApplicationTitleFieldOwner as printed
Mar 13, 20252025/0084536CHEMICAL TREATMENT LIQUID AND METHOD FOR CHEMICAL TREATMENT OF TARGET METAL MATERIALSurface technology, coatingDIPSOL CHEMICALS CO., LTD.
Feb 27, 20252025/0066924CHEMICAL TREATMENT LIQUID AND METHOD FOR CHEMICAL TREATMENT OF TARGET METAL MATERIALSurface technology, coatingDIPSOL CHEMICALS CO., LTD.
Dec 19, 20242024/0417879System for Electrochemical Treatment and Method ThereofSurface technology, coatingQUAKER CHEMICAL CORPORATION
Dec 5, 20242024/0400813STABLE RESIN METHODS AND COMPOSITIONS FOR AQUEOUS TREATMENTSMacromolecular chemistry, polymersQUAKER CHEMICAL CORPORATION
Dec 5, 20242024/0399638Transferable Maskants Suitable for Chemical ProcessingSurface technology, coatingQUAKER CHEMICAL CORPORATION
Nov 28, 20242024/0392461METHOD AND SYSTEM FOR ELECTROPLATING ARTICLE WITH METALSurface technology, coatingDIPSOL CHEMICALS CO., LTD.
Nov 21, 20242024/0384110TOP COATING AGENT AND SILVERY-WHITE FASTENING MEMBER HAVING PROTECTIVE FILM FORMED USING SAID TOP COATING AGENTBasic materials chemistryDIPSOL CHEMICALS CO., LTD.
Oct 10, 20242024/0337041ANODE FOR ELECTROPLATING, AND METHOD AND SYSTEM FOR ELECTROPLATING ARTICLES WITH METALSurface technology, coatingDIPSOL CHEMICALS CO., LTD.
May 23, 20242024/0166829Transferable Maskants Suitable for Chemical ProcessingSurface technology, coatingAC PRODUCTS, INC.
Nov 9, 20232023/0358722MEASUREMENT AND CONTROL OF ENTRAINED AIR AND FOAM IN METALWORKING FLUIDSAnalysis of biological materialsQUAKER CHEMICAL CORPORATION
What it applied for, 2024 to 2025: Surface technology, coating 7 · Basic materials chemistry 1 · 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 KWR · research, not advice