Ingo Pinnau
54Patents
19h-index
40Co-inventors
84Inventor score
Filing activity: Jul 15, 1986 → Sep 17, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4963165A | Composite membrane, method of preparation and use | Chemistry; Metallurgy | 106 | Expired |
| US6361582B1 | Gas separation using C3+ hydrocarbon-resistant membranes | Performing Operations; Transporting | 100 | Expired |
| US6572678B1 | Natural gas separation using nitrogen-selective membranes of modest selectivity | Chemistry; Metallurgy | 88 | Expired |
| US6579341B2 | Nitrogen gas separation using organic-vapor-resistant membranes | Emerging Cross-Sectional Technologies | 76 | Expired |
| US5281255A | Gas-separation process | Performing Operations; Transporting | 64 | Expired |
| US6565626B1 | Natural gas separation using nitrogen-selective membranes | Chemistry; Metallurgy | 61 | Expired |
| US5670051A | Olefin separation membrane and process | Performing Operations; Transporting | 61 | Expired |
| US6896717B2 | Gas separation using coated membranes | Performing Operations; Transporting | 56 | Expired |
| US6361583B1 | Gas separation using organic-vapor-resistant membranes | Emerging Cross-Sectional Technologies | 43 | Expired |
| US5669958A | Methane/nitrogen separation process | Mechanical Engineering; Lighting; Heating | 40 | Expired |
| US4902422A | Defect-free ultrahigh flux asymmetric membranes | Performing Operations; Transporting | 40 | Expired |
| US5501722A | Natural gas treatment process using PTMSP membrane | Performing Operations; Transporting | 38 | Expired |
| US5779763A | Process for recovering semiconductor industry cleaning compounds | Emerging Cross-Sectional Technologies | 33 | Expired |
| US6544316B2 | Hydrogen gas separation using organic-vapor-resistant membranes | Performing Operations; Transporting | 32 | Expired |
| US6572679B2 | Gas separation using organic-vapor-resistant membranes in conjunction with organic-vapor-selective membranes | Chemistry; Metallurgy | 31 | Expired |
| US7490725B2 | Reverse osmosis membrane and process | Performing Operations; Transporting | 28 | Expired |
| US4871378A | Ultrathin ethylcellulose/poly(4-methylpentene-1) permselective membranes | Performing Operations; Transporting | 24 | Expired |
| US6271319A | Membrane-augmented polypropylene manufacturing | Performing Operations; Transporting | 24 | Expired |
| US6592650B2 | Gas separation using organic-vapor-resistant membranes and PSA | Performing Operations; Transporting | 23 | Expired |
| US5085776A | Composite membranes for fluid separations | Performing Operations; Transporting | 17 | Expired |
| US6316684A | Filled superglassy membrane | Chemistry; Metallurgy | 16 | Expired |
| US4931181A | Composite membranes for fluid separations | Performing Operations; Transporting | 16 | Expired |
| US6572680B2 | Carbon dioxide gas separation using organic-vapor-resistant membranes | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4990255A | Composite membranes for fluid separations | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6183628A | Process, including PSA and membrane separation, for separating hydrogen from hydrocarbons | Performing Operations; Transporting | 10 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.