Entergy Corporation (ETR)
Patents
US patents through Dec 31, 2025 · PatentsView, from the USPTO’s Open Data Portal · read Oct 27, 202610 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 Entergy Corporation’s names, not what it holds today.
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| Granted | Patent | Title | Field | Owner as printed |
|---|---|---|---|---|
| Dec 27, 2005 | 6,979,776 | Pipe bundle for underground installation | Electrical machinery, apparatus, energy | Entergy Louisiana, Inc. |
| Jul 6, 1999 | 5,918,911 | Replacement and repair of nozzles for pressure vessels | Engines, pumps, turbines | Entergy Arkansas, Inc. |
| Feb 25, 1997 | 5,605,361 | Replacement nozzle for pressure vessels and method of a attaching same | Engines, pumps, turbines | Entergy Operations, Inc. |
| Jun 4, 1996 | 5,524,128 | Boiling water reactor stability control | Engines, pumps, turbines | Entergy Operations, Inc. |
| Sep 26, 1995 | 5,453,587 | Transportable remotely actuated racking device for use with high voltage industrial circuit breakers | Electrical machinery, apparatus, energy | Gulf States Utilities Company |
| Jun 27, 1995 | 5,428,651 | Nuclear reactor locking piston drive system and valve assembly | Mechanical elements | Gulf States Utilities Company |
| Jul 12, 1994 | 5,327,930 | Nuclear reactor locking piston drive system and valve assembly | Mechanical elements | Gulf States Utilities Company |
| Jan 12, 1993 | 5,178,822 | Steam generator corrosion monitoring system and method | Thermal processes and apparatus | Arkansas Power and Light Company |
| Jul 12, 1988 | 4,756,770 | Water slap steam generator cleaning method | Thermal processes and apparatus | Arkansas Power and Light Company |
| Feb 24, 1981 | 4,252,398 | Electric power meter | Measurement | Mississippi Power and Light Company |
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.