Inventor · disambiguated record
Charles Free
Also filed as: FREE CHARLES · FREE CHARLES W
7 granted patents·1 pending application·8 citations·filing 2008–2020
75Inventor score
Top patents by PatentIndex Score
8 records- 0187US10077855B2Method of lining pipe with high strength liner, high strength liner, and pipe lined with high strength linerINA ACQUISITION CORP·Filed 2015·Granted Sep 18, 2018·6 cites·14 claims
- 0268US10704728B2Pipe liner and method of making sameINA ACQUISITION CORP·Filed 2018·Granted Jul 7, 2020·1 cites·20 claims
- 0364US11708919B2High strength, stretchable liner, for pipeINA ACQUISITION CORP·Filed 2020·Granted Jul 25, 2023·0 cites·21 claims
- 0461US11384889B2Pipe liner and method of making and installing the sameINA ACQUISITION CORP·Filed 2020·Granted Jul 12, 2022·0 cites·20 claims
- 0558US10816112B2Method of lining pipe with high strength liner, high strength liner, and pipe lined with high strength linerINA ACQUISITION CORP·Filed 2018·Granted Oct 27, 2020·0 cites·20 claims
- 0649US8069532B2Reinforced grommet for cured in place linerFREE CHARLES W·Filed 2008·Granted Dec 6, 2011·1 cites·20 claims
- 0735US11173634B2Electromagnetic radiation curable pipe liner and method of making and installing the sameINA ACQUISITION CORP·Filed 2018·Granted Nov 16, 2021·0 cites·15 claims
- 0829US2017002969A1Method and apparatus for lining pipesFYFE CO LLC·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →