Valhi, Inc. (VHI)
Patents
US patents through Dec 31, 2025 · PatentsView, from the USPTO’s Open Data Portal · read Oct 27, 20263 patents granted to the name 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 Valhi, Inc.’s names, not what it holds today.
0 published
| Granted | Patent | Title | Field | Owner as printed |
|---|---|---|---|---|
| Nov 28, 1989 | 4,882,919 | Flush mounted panel lock construction | Civil engineering | Valhi Inc. |
| Dec 29, 1987 | 4,715,201 | Cylinder lock with removable plug | Civil engineering | Valhi Inc. |
| Nov 10, 1987 | 4,705,326 | Locking system | Civil engineering | Valhi Inc. |
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.