Pipe Liners, Inc.
9Patents
0Active
9Granted
27Portfolio score
Filing activity: Jul 27, 1987 → Mar 28, 2006
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4985196A | Pipe liner process | Emerging Cross-Sectional Technologies | 50 | Expired |
| US4863365A | Method and apparatus for deforming reformable tubular pipe liners | Performing Operations; Transporting | 35 | Expired |
| US5342570A | Method and apparatus for deforming reformable tubular pipe liners | Performing Operations; Transporting | 34 | Expired |
| US4986951A | Pipe liner process | Emerging Cross-Sectional Technologies | 33 | Expired |
| US4998871A | Apparatus for deforming plastic tubing for lining pipe | Performing Operations; Transporting | 25 | Expired |
| US5091137A | Pipe lining process | Emerging Cross-Sectional Technologies | 24 | Expired |
| US5112211A | Pipe lining apparatus | Performing Operations; Transporting | 12 | Expired |
| US7172369B2 | Methods for aligning pipes and connecting the lined pipe with adjacent or lateral pipes | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US7037043B1 | Methods for lining pipes and connecting the lined pipe with adjacent or lateral pipes | Mechanical Engineering; Lighting; Heating | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.