Patents
US patents through Dec 31, 2025 · PatentsView, from the USPTO’s Open Data Portal · read Oct 27, 2026
45 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 Chemed Corporation’s names, not what it holds today.
Patents granted
45
45 utility, 1976 to Dec 31, 2025
Granted in 2025
none
in the last year the record reads
Applications published
0
since 2001, to Dec 31, 2025
Names they are printed under
1
its own name
By yearGrantedApplications published
'76'77'78'79'80'81'82'83'87'88
Each pair is one calendar year. Applications are published about eighteen months after filing, so the newest years read low.
Under which name1 counted
Chemed Corporation its own name
US, as the owner printed on each patent
0 published
Newest grantseach row opens the USPTO’s own copy
| Granted | Patent | Title | Field | Owner as printed |
|---|
| Jan 12, 1988 | 4,719,083 | Composition useful as corrosion inhibitor, anti-scalant and continuous biocide for water cooling towers and method of use | Environmental technology | Chemed Corporation |
| Jul 21, 1987 | 4,681,696 | Solid stabilized active halogen-containing detergent compositions and methods | Basic materials chemistry | Chemed Corporation |
| Sep 27, 1983 | 4,406,812 | Deodorant and reconditioner for metal working fluids | Basic materials chemistry | Chemed Corporation |
| Dec 21, 1982 | 4,365,200 | Self alarming four double electrodes conductivity cell | Measurement | Chemed Corporation |
| Dec 7, 1982 | 4,362,994 | Self alarming five single electrodes conductivity cell | Measurement | Chemed Corporation |
| Oct 12, 1982 | 4,353,745 | Cleaner for anti-graffiti system | Basic materials chemistry | Chemed Corporation |
| Dec 22, 1981 | 4,306,991 | Scale inhibition | Environmental technology | Chemed Corporation |
| Nov 3, 1981 | 4,298,018 | Pumping process | Engines, pumps, turbines | Chemed Corporation |
| Jul 14, 1981 | 4,278,635 | Method for deoxygenation of water | Surface technology, coating | Chemed Corporation |
| Mar 17, 1981 | 4,256,703 | Fly ash collection | Basic materials chemistry | Chemed Corporation |
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.