Constellation Energy Corporation (CEG)
Nasdaq: CEG · Electric Services · Baltimore, MD · filing with the SEC since 2021
Patents
US patents through Dec 31, 2025 · PatentsView, from the USPTO’s Open Data Portal · read Oct 27, 202621 patents granted to the 6 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 Constellation Energy Corporation’s names, not what it holds today.
Patents granted
21
19 utility, 2 design, 1976 to Dec 31, 2025
Granted in 2025
2
Against 3 in 2024 and none in 2023
Applications published
11
2 of them in 2025
Names they are printed under
6
a subsidiary
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
Electrical machinery, apparatus, energy3
Environmental technology1
Computer technology1
Surface technology, coating1
IT methods for management1
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name6 counted
Constellation Energy Generation, LLC a subsidiary
named as the applicant on its applications, in US
7 published
The Delta Company, LLC a subsidiary
US, as the owner printed on each patent. 6 more under the same name are not counted (printed in CA, printed in CH, printed in JP)
0 published
Calpine Corporation a subsidiary
US, as the owner printed on each patent
2 published
Constellation Energy Generation, LLC a subsidiary
US, as the owner printed on each patent
0 published
Calpine Operating Services, Inc. a subsidiary
US, as the owner printed on each patent
2 published
Thermal Power Corporation a subsidiary
US, as the owner printed on each patent
0 published
Names not counted (4)
Delta, LLC
Most of its patents print IT; this name counts in US. 0 granted and 5 published under it are not counted.
Delta, LLC
Most of its patents print IT; this name counts in US. 2 granted and 0 published under it are not counted.
Calpine Energy Services LP, LLC
No country is printed for it. 0 granted and 1 published under it are not counted.
Calpine LLC
No country is printed for it. 0 granted and 1 published under it are not counted.
Newest grantseach row opens the USPTO’s own copy
Newest applications publishedan application is a clue, never a plan
| Published | Application | Title | Field | Owner as printed |
|---|---|---|---|---|
| May 15, 2025 | 2025/0154656 | COPPER-FOULING RESISTANT STATOR WATER COOLING (SWC) SYSTEM AND METHOD | Surface technology, coating | Constellation Energy Generation, LLC |
| Jan 9, 2025 | 2025/0012437 | Steam Hammer Pump and Electrical Power Facility | Thermal processes and apparatus | Constellation Energy Generation, LLC |
| Nov 7, 2024 | 2024/0369443 | METHODS AND SYSTEMS FOR ASSET DATA ANALYSIS | Measurement | Constellation Energy Generation, LLC |
| Oct 17, 2024 | 2024/0345266 | Systems, Methods, and Apparatuses for Radiation Consequence Analysis | Environmental technology | Constellation Energy Generation, LLC |
| May 23, 2024 | 2024/0170746 | BATTERY CONTROL AND ANALYSIS | Electrical machinery, apparatus, energy | Constellation Energy Generation, LLC |
| Aug 17, 2023 | 2023/0258327 | Steam Hammer Pump and Electrical Power Facility | Thermal processes and apparatus | Constellation Energy Generation, LLC · patent 12,098,843 granted from it |
| Apr 6, 2023 | 2023/0103983 | METHODS AND SYSTEMS FOR PROVIDING POWER | Electrical machinery, apparatus, energy | Constellation Energy Generation, LLC · patent 12,424,872 granted from it |
| Mar 7, 2013 | 2013/0058851 | System and Method for Removing a Contaminant from a Gas Stream | Environmental technology | Calpine Corporation · patent 8,652,428 granted from it |
| Jul 19, 2012 | 2012/0183461 | System and Method for Removing a Contaminant from a Gas Stream | Environmental technology | Calpine Corporation · patent 8,409,535 granted from it |
| Mar 24, 2011 | 2011/0070073 | REPAIR OF INDUSTRIAL GAS TURBINE NOZZLE DIAPHRAGM PACKING | Machine tools | Calpine Operating Services, Inc. · patent 7,985,046 granted from it |
What it applied for, 2024 to 2025: Electrical machinery, apparatus, energy 1 · Environmental technology 1 · Measurement 1 · Thermal processes and apparatus 1 · Surface technology, coating 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.