Rainer Hagen
59Patents
11h-index
91Co-inventors
81Inventor score
Filing activity: Apr 5, 1982 → Sep 21, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4492808A | Method for separating ethanol from an ethanol containing solution | Emerging Cross-Sectional Technologies | 110 | Expired |
| US4642401A | Process for the production of liquid hydrocarbons | Chemistry; Metallurgy | 68 | Expired |
| US6559271B2 | Method for producing polyesters with a reduced content of free acetaldehyde | Emerging Cross-Sectional Technologies | 50 | Expired |
| US6162837A | Method and device for the recovery of linear polyester | Emerging Cross-Sectional Technologies | 35 | Expired |
| US4400398A | Method for obtaining aromatics and dyestuffs from bell peppers | Human Necessities | 24 | Expired |
| US4485003A | Supercritical extraction and simultaneous catalytic hydrogenation of coal | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4812233A | Apparatus for separating a solid substance from a liquid mixture of substances | Performing Operations; Transporting | 16 | Expired |
| US6013756A | Process for producing polyesters using titanium-containing catalyst-inhibitor combinations | Chemistry; Metallurgy | 14 | Expired |
| US6875839B2 | Method for producing polylactic acid and corresponding device | Chemistry; Metallurgy | 13 | Expired |
| US5773555A | Method and apparatus for the production of polyamides | Chemistry; Metallurgy | 13 | Expired |
| US4652686A | Process for producing hydrocarbons from biological sludge | Emerging Cross-Sectional Technologies | 12 | Expired |
| US7046893B2 | Layer structure and optical waveguide sensor based on photoaddressable polymers | Physics | 11 | Expired |
| US7115701B2 | Method for the continuous production of high-molecular polyester and device for carrying out the method | Performing Operations; Transporting | 11 | Expired |
| US9804490B2 | Holographic media with improved light sensitivity | Physics | 8 | Active |
| US4828702A | Process for separating a solid substance from a liquid mixture of substances | Performing Operations; Transporting | 7 | Expired |
| US10001703B2 | Photopolymer formulation for production of holographic media comprising borates with low TG | Physics | 7 | Active |
| US7259227B2 | Method for continuous production of high-molecular weight polyesters and device for implementation of the method | Performing Operations; Transporting | 5 | Expired |
| US4560513A | Process for the recovery of lecithin | Human Necessities | 5 | Expired |
| US4581166A | Method for isolating and purifying antibiotics | Chemistry; Metallurgy | 5 | Expired |
| US7022460B2 | Erasable optical recording material for blue lasers | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6835725B2 | Optical data carrier comprising a cyanine dye as light-absorbent compound in the information layer | Emerging Cross-Sectional Technologies | 3 | Expired |
| US8430948B2 | Condensation and washing device, polymerisation device and method for cleaning process steam during the production of polylactide | Chemistry; Metallurgy | 3 | Active |
| US9910208B2 | Thin film type controlled viewing window back light unit and thin flat type controlled viewing window display using the same | Physics | 2 | Active |
| US10915066B2 | Device and method for the industrial production of volume reflection holograms with substrate-guided reconstruction beams | Physics | 2 | Active |
| US7018684B2 | Block copolymers for optical data storage | Chemistry; Metallurgy | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.