Patents
US patents through Dec 31, 2025 · PatentsView, from the USPTO’s Open Data Portal · read Oct 27, 2026
11 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 NiSource Inc.’s names, not what it holds today.
Patents granted
11
11 utility, 1976 to Dec 31, 2025
Granted in 2025
none
in the last year the record reads
Applications published
1
since 2001, to Dec 31, 2025
Names they are printed under
3
a subsidiary
By yearGrantedApplications published
'87'90'94'95'96'97'98'99'05
Each pair is one calendar year. Applications are published about eighteen months after filing, so the newest years read low.
Under which name3 counted
Columbia Gas of Ohio a subsidiary
US, as the owner printed on each patent
0 publishedNiSource Corporate Services Company a subsidiary
US, as the owner printed on each patent
1 publishedNorthern Indiana Public Service Company a subsidiary
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 |
|---|
| Oct 4, 2005 | 6,951,580 | Method for minimizing bowing of collector plates in an electrostatic precipitator, and a collector plate-clip combination | Chemical engineering | NiSource Corporate Services Company |
| Nov 9, 1999 | 5,980,102 | Method for measuring physical characteristics in a pipeline without tapping | Measurement | Columbia Gas of Ohio |
| Nov 17, 1998 | 5,836,693 | Method and apparatus for measuring pressure in a pipeline without tapping | Measurement | Columbia Gas of Ohio |
| Jun 23, 1998 | 5,769,033 | Hot water storage | Thermal processes and apparatus | Columbia Gas of Ohio |
| Jul 8, 1997 | 5,645,348 | Method and apparatus for measuring pressure in a pipeline without tapping | Measurement | Columbia Gas of Ohio |
| Aug 20, 1996 | 5,546,760 | Generator for absorption heat pumps | Thermal processes and apparatus | Columbia Gas of Ohio |
| Jul 9, 1996 | 5,533,362 | Heat transfer apparatus for heat pumps | Thermal processes and apparatus | Columbia Gas of Ohio |
| May 9, 1995 | 5,412,989 | Acoustic tracing of buried conduits | Measurement | Columbia Gas of Ohio |
| Nov 8, 1994 | 5,361,636 | Apparatus and process for measuring the magnitude of leaks | Measurement | Columbia Gas of Ohio |
| Apr 3, 1990 | 4,914,275 | Regasifier | Thermal processes and apparatus | Northern Indiana Public Service Company |
Newest applications publishedan application is a clue, never a plan
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.