Press-Seal Corporation
11Patents
11Active
11Granted
47Portfolio score
Filing activity: Mar 13, 2013 → Apr 21, 2020
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US10214893B2 | Manhole base assembly with internal liner and method of manufacturing same | Fixed Constructions | 8 | Active |
| US9644768B2 | Expandable sealing mechanism | Emerging Cross-Sectional Technologies | 7 | Active |
| US9617722B2 | Manhole base assembly with internal liner and method of manufacturing same | Fixed Constructions | 5 | Active |
| US10053850B2 | Manhole base assembly with internal liner and method of manufacturing same | Fixed Constructions | 2 | Active |
| US11578825B2 | Pipe joint seal for polymer piping | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US9803784B2 | Corrugated pipe gasket | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US10428512B2 | Manhole base assembly with internal liner and method of manufacturing same | Fixed Constructions | 0 | Active |
| US10563805B2 | Expandable sealing mechanism | Emerging Cross-Sectional Technologies | 0 | Active |
| US10786927B2 | Hole former with gasket locating features for cast manhole structures | Mechanical Engineering; Lighting; Heating | 0 | Active |
| USD813661S1 | Expandable sealing mechanism | General | 0 | Active |
| USD814285S1 | Expandable sealing mechanism | General | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.