Patents
US patents through Dec 31, 2025 · PatentsView, from the USPTO’s Open Data Portal · read Oct 27, 2026
41 patents granted to the 3 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 Tronox Limited CL A’s names, not what it holds today.
Patents granted
41
41 utility, 1976 to Dec 31, 2025
Granted in 2025
none
Against 2 in 2024 and 1 in 2023
Applications published
37
1 of them in 2025
Names they are printed under
3
a former name, a subsidiary
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
Textile and paper machines2
Chemical engineering1
Electrical machinery, apparatus, energy1
Materials, metallurgy1
Basic materials chemistry1
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name3 counted
Tronox LLC a former name
US, as the owner printed on each patent
17 publishedTronox LLC a former name
named as the applicant on its applications, in US
17 publishedCristal Metals Inc. a subsidiary
US, as the owner printed on each patent
3 publishedNames not counted (2)
Millennium Inorganic Chemicals SAS
Most of its patents print US; this name counts in FR. 55 granted and 34 published under it are not counted.
Tronox Pigments Pty Limited
Most of its patents print DE; this name counts in AU. 3 granted and 2 published under it are not counted.
Newest grantseach row opens the USPTO’s own copy
| Granted | Patent | Title | Field | Owner as printed |
|---|
| Oct 8, 2024 | 12,110,634 | Treated titanium dioxide pigment, process of making thereof and use thereof in paper manufacture | Textile and paper machines | Tronox LLC |
| Sep 17, 2024 | 12,091,556 | Stir-in titanium dioxide pigment composition | Basic materials chemistry | Tronox LLC |
| Aug 8, 2023 | 11,718,538 | Centrifugal aluminum chloride generator | Materials, metallurgy | Tronox LLC |
| Jun 28, 2022 | 11,371,190 | Treated titanium dioxide pigment with high magnesium oxide addition, process of making thereof and use thereof in paper manufacture | Textile and paper machines | Tronox LLC |
| Jan 11, 2022 | 11,223,042 | Lithium-intercalated titanium dioxide, lithium titanate particles made therefrom, and related methods | Electrical machinery, apparatus, energy | Tronox LLC |
| May 4, 2021 | 10,995,012 | Concentrated photoactive, neutral titanium dioxide sol | Chemical engineering | Tronox LLC |
| May 5, 2020 | 10,639,614 | NOx reducing coatings and methods for reducing NOx therewith | Basic materials chemistry | Tronox LLC |
| Sep 10, 2019 | 10,407,544 | Titanium dioxide pigment and manufacturing method | Macromolecular chemistry, polymers | Tronox LLC |
| Aug 6, 2019 | 10,370,540 | Inorganic pigments surface treated with polyol esters | Macromolecular chemistry, polymers | Tronox LLC |
| Apr 2, 2019 | 10,246,342 | Centrifugal aluminum chloride generator | Materials, metallurgy | Tronox LLC |
Newest applications publishedan application is a clue, never a plan
| Published | Application | Title | Field | Owner as printed |
|---|
| Jan 23, 2025 | 2025/0026908 | INORGANIC PIGMENT TREATED WITH PHMS/PDMS COPOLYMER | Basic materials chemistry | Tronox LLC |
| Sep 19, 2024 | 2024/0309215 | TREATED TITANIUM DIOXIDE PIGMENT | Basic materials chemistry | Tronox LLC |
| Oct 20, 2022 | 2022/0333310 | TREATED TITANIUM DIOXIDE PIGMENT WITH HIGH MAGNESIUM OXIDE ADDITION, PROCESS OF MAKING THEREOF AND USE THEREOF IN PAPER MANUFACTURE | Textile and paper machines | Tronox LLC |
| Feb 17, 2022 | 2022/0049109 | ANTI-CORROSION TITANIUM DIOXIDE PIGMENTS | Basic materials chemistry | Tronox LLC |
| Sep 23, 2021 | 2021/0292569 | TREATED TITANIUM DIOXIDE PIGMENT WITH HIGH MAGNESIUM OXIDE ADDITION, PROCESS OF MAKING THEREOF AND USE THEREOF IN PAPER MANUFACTURE | Textile and paper machines | Tronox LLC · patent 11,371,190 granted from it |
| Aug 26, 2021 | 2021/0262171 | TREATED TITANIUM DIOXIDE PIGMENT, PROCESS OF MAKING THEREOF AND USE THEREOF IN PAPER MANUFACTURE | Textile and paper machines | Tronox LLC · patent 12,110,634 granted from it |
| Aug 15, 2019 | 2019/0249014 | STIR-IN TITANIUM DIOXIDE PIGMENT COMPOSITION | Basic materials chemistry | Tronox LLC · patent 12,091,556 granted from it |
| Jul 11, 2019 | 2019/0210888 | Centrifugal Aluminum Chloride Generator | Materials, metallurgy | Tronox LLC · patent 11,718,538 granted from it |
| Jan 10, 2019 | 2019/0010287 | TITANIUM DIOXIDE PIGMENT AND MANUFACTURING METHOD | Macromolecular chemistry, polymers | Tronox LLC · patent 10,407,544 granted from it |
| Nov 23, 2017 | 2017/0335048 | POLYMER, POLYMER MODIFIED TITANIUM DIOXIDE PIGMENT, AND METHOD OF FORMING A PIGMENTED PAINT FORMULATION | Macromolecular chemistry, polymers | Tronox LLC · patent 9,902,800 granted from it |
What it applied for, 2024 to 2025: Basic materials chemistry 2.
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.