Wangner Systems Corporation
39Patents
1Active
39Granted
34Portfolio score
Filing activity: May 18, 1979 → Dec 17, 1998
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5114777A | Woven multilayer papermaking fabric having increased stability and permeability and method | Emerging Cross-Sectional Technologies | 103 | Expired |
| US5456293A | Woven papermaking fabric with diagonally arranged pockets and troughs | Textiles; Paper | 91 | Expired |
| US5542455A | Papermaking fabric having diagonal rows of pockets separated by diagonal rows of strips having a co-planar surface | Textiles; Paper | 73 | Expired |
| US4490925A | Low permeability spiral fabric and method | Emerging Cross-Sectional Technologies | 68 | Expired |
| US5520225A | Pocket arrangement in the support surface of a woven papermaking fabric | Textiles; Paper | 64 | Expired |
| US5555917A | Sixteen harness multi-layer forming fabric | Textiles; Paper | 63 | Expired |
| US5713397A | Multi-layered through air drying fabric | Textiles; Paper | 55 | Expired |
| US5228482A | Papermaking fabric with diagonally arranged pockets | Textiles; Paper | 51 | Expired |
| US6148869A | Dual layer papermaking fabric formed in a balanced weave | Textiles; Paper | 43 | Expired |
| US5188884A | Woven papermaking fabric having low profile seam | Emerging Cross-Sectional Technologies | 37 | Expired |
| US5492601A | Laser apparatus and method for monitoring the de-watering of stock on papermaking machines | Emerging Cross-Sectional Technologies | 36 | Expired |
| US5731059A | Dryer fabric having an abrasion resistant edge | Emerging Cross-Sectional Technologies | 36 | Expired |
| US5421375A | Eight harness double layer forming fabric with uniform drainage | Textiles; Paper | 33 | Expired |
| US4632716A | Woven low permeability fabric and method | Emerging Cross-Sectional Technologies | 28 | Expired |
| US4381612A | Dryer fabric for papermaking machine and method | Textiles; Paper | 28 | Expired |
| US5817213A | Paper product formed from embossing fabric | Textiles; Paper | 27 | Expired |
| US5254398A | Woven multilayer papermaking fabric having increased stability and permeability and method | Emerging Cross-Sectional Technologies | 27 | Expired |
| US5694980A | Woven fabric | Textiles; Paper | 27 | Expired |
| US5169709A | Paper machine forming fabric with controlled porosity | Emerging Cross-Sectional Technologies | 27 | Expired |
| US4364421A | Woven textile dryer fabric and seam and weaving method | Emerging Cross-Sectional Technologies | 26 | Expired |
| US5988229A | Papermakers forming fabric with weft dominated paper support surface | Emerging Cross-Sectional Technologies | 26 | Expired |
| US4500590A | Dryer fabric having reduced permeability in the area of the pintle joint | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5200260A | Needled papermaking felt | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5164249A | Controlled porosity papermaking fabric | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5422166A | Abrasion resisting edge for a forming fabric | Emerging Cross-Sectional Technologies | 21 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.