Minerals Technologies Inc (MTX)
NYSE: MTX · Industrial Inorganic Chemicals · New York, NY · filing with the SEC since 1994
Grade6.6
◀ Past 6.3● Present 7.4▶ Future 5.7
Patents
US patents through Dec 31, 2025 · PatentsView, from the USPTO’s Open Data Portal · read Oct 27, 2026345 patents granted to the 10 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 Minerals Technologies Inc’s names, not what it holds today.
Patents granted
345
342 utility, 2 design, 1 reissue, 1976 to Dec 31, 2025
Granted in 2025
none
in the last year the record reads
Applications published
127
since 2001, to Dec 31, 2025
Names they are printed under
10
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
Chemical engineering1
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name10 counted
AMCOL INTERNATIONAL CORPORATION a subsidiary
US, as the owner printed on each patent. 1 more under the same name are not counted (printed in IL)
101 published
American Colloid Company a subsidiary
US, as the owner printed on each patent
3 published
Minerals Technologies Inc. its own name
US, as the owner printed on each patent
5 published
AMCOL INTERNATIONAL CORPORATION a subsidiary
named as the applicant on its applications, in US. 1 more under the same name are not counted (printed in IL)
10 published
AMCOL INTERNATIONAL CORPORATION, a Delaware corporation a subsidiary
US, as the owner printed on each patent
3 published
Minteq International, Inc. a subsidiary
US, as the owner printed on each patent
0 published
Normerica Inc. a subsidiary
named as the applicant on its applications, in CA
3 published
AMCOL HEALTH & BEAUTY SOLUTIONS a subsidiary
US, as the owner printed on each patent
1 published
Normerica Inc. a subsidiary
CA, as the owner printed on each patent
0 published
SIVOMATIC BV a subsidiary
NL, as the owner printed on each patent
1 published
Names not counted (1)
Normerica International Corporation
Most of its patents print CA; this name counts in BB. 1 granted and 0 published under it are not counted.
Newest grantseach row opens the USPTO’s own copy
| Granted | Patent | Title | Field | Owner as printed |
|---|---|---|---|---|
| Jan 26, 2021 | 10,898,947 | Processes for recovering sand and active clay from foundry waste | Chemical engineering | AMCOL INTERNATIONAL CORPORATION |
| Jul 10, 2018 | 10,016,954 | Self healing salt water barrier | Surface technology, coating | AMCOL INTERNATIONAL CORPORATION |
| Jul 3, 2018 | 10,012,079 | Self healing salt water barrier | Surface technology, coating | AMCOL INTERNATIONAL CORPORATION |
| Jun 12, 2018 | 9,995,014 | Self healing salt water barrier | Civil engineering | AMCOL INTERNATIONAL CORPORATION |
| Jun 20, 2017 | 9,683,204 | Visually contrasting aesthetic particles having increased water solubility, particularly useful for combination with powdered or granular compositions | Basic materials chemistry | AMCOL INTERNATIONAL CORPORATION |
| Jun 13, 2017 | 9,676,013 | Dispersible, reactive contaminant capping material | Chemical engineering | AMCOL INTERNATIONAL CORPORATION |
| Jan 24, 2017 | 9,550,879 | Hydraulic barrier composition and method of making the same | Chemical engineering | AMCOL INTERNATIONAL CORPORATION |
| Oct 18, 2016 | 9,469,552 | Produced fluid heating and separation | Environmental technology | AMCOL INTERNATIONAL CORPORATION |
| Aug 2, 2016 | 9,403,974 | Clay/polymer blend as high pH or ionic liquid barrier | Chemical engineering | AMCOL INTERNATIONAL CORPORATION |
| May 24, 2016 | 9,347,303 | Produced fluid heating and separation | Environmental technology | AMCOL INTERNATIONAL CORPORATION |
Newest applications publishedan application is a clue, never a plan
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.