Peter Seifert
46Patents
11h-index
55Co-inventors
78Inventor score
Filing activity: Jun 21, 1974 → Jul 23, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5262003A | Method and system for defibering paper making materials | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4155841A | High turbulence screen | Textiles; Paper | 21 | Expired |
| US4081147A | Reversible disk refiner plates | Textiles; Paper | 17 | Expired |
| US4722793A | Apparatus and method for thickening pulp and paper stock | Textiles; Paper | 16 | Expired |
| US4410424A | Screening apparatus for paper making stock | Textiles; Paper | 15 | Expired |
| US5234172A | High pressure water jet comminuting | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4427798A | Solutions of oligo-urethane ethers in polyether polyols and their use in a process for the production of polyurethane foams | Chemistry; Metallurgy | 13 | Expired |
| US5644238A | Method and apparatus for comparing load current in an electrical circuit with the capacity of its supply source | Physics | 13 | Expired |
| US3970548A | Apparatus for screening paper fiber stock | Textiles; Paper | 12 | Expired |
| US4383918A | High turbulence screen | Textiles; Paper | 11 | Expired |
| US4328096A | Dual flow screening apparatus | Performing Operations; Transporting | 11 | Expired |
| US4323657A | Dispersions of high melting polyesters in polyhydroxyl compounds, a process for their preparation and their use in the production of polyurethanes | Chemistry; Metallurgy | 11 | Expired |
| US4155839A | Reverse centrifugal cleaning of paper making stock | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4171101A | Method of operating a disk refiner provided with reversible refining plates | Textiles; Paper | 9 | Expired |
| US4668734A | Stable dispersions of polyureas and/or polyhydrazo-dicarbonamides in relatively high molecular weight hydroxyl-group containing materials, a process for the production thereof and the use thereof for the production of polyurethane plastics | Chemistry; Metallurgy | 8 | Expired |
| US4105543A | Method for screening paper fiber stock | Textiles; Paper | 8 | Expired |
| US5122229A | Apparatus and method for washing cellulosic pulp | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5582686A | High pressure water jet comminuting | Emerging Cross-Sectional Technologies | 7 | Expired |
| US6595373B1 | Wedge wire and paper stock screening apparatus incorporating such wedge wire | Performing Operations; Transporting | 7 | Expired |
| US5382327A | Apparatus for thickening pulp and paper stock | Textiles; Paper | 6 | Expired |
| US4106980A | Thickener apparatus including a shaftless cylinder mold | Textiles; Paper | 6 | Expired |
| US4099458A | Cone press | Performing Operations; Transporting | 6 | Expired |
| US3960332A | Defibering apparatus for paper making stock | Textiles; Paper | 6 | Expired |
| US3948165A | Cone press | Performing Operations; Transporting | 6 | Expired |
| USRE28677E | Waste treatment system | General | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.