Hans-Joachim Hähnle
20Patents
8h-index
45Co-inventors
75Inventor score
Filing activity: Apr 18, 1997 → Feb 5, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6750262B1 | Water-absorbing, cellular, cross-linked polymers with improved distribution effect, method for their production and their use | Chemistry; Metallurgy | 111 | Expired |
| US6174929A | Water-absorbent cross-linked polymers in foam form | Chemistry; Metallurgy | 67 | Expired |
| US6455600B1 | Water-absorbing, cross-linked polymerizates in the form of a foam, a method for the production thereof, and their use | Chemistry; Metallurgy | 67 | Expired |
| US6136873A | Water-absorbing, expanded, crosslinked polymers, the production and use thereof | Human Necessities | 60 | Expired |
| US6245410A | Absorber element of superabsorbent foams having anisotropic swelling behavior | Emerging Cross-Sectional Technologies | 39 | Expired |
| US6800666B2 | Hydrophilic, open-cell, elastic foams with a melamine/formaldehyde resin base, production thereof and use thereof in hygiene products | Chemistry; Metallurgy | 16 | Expired |
| US6703431B2 | Flexible open-celled microcellular polymer foams | Chemistry; Metallurgy | 12 | Expired |
| US7220821B2 | Process for the reduction of the residual monomer content of water-absorbent foam | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6828354B2 | Hydrophilic open-cell, elastic foams with a melamine/formaldehyde resin base, production thereof and use thereof in hygiene products | Chemistry; Metallurgy | 6 | Expired |
| US6204315A | Non-flammable, thermoplastic molded materials based on polyphenylene ethers | Chemistry; Metallurgy | 2 | Expired |
| US6040420A | Polyformamides and polyamines | Chemistry; Metallurgy | 2 | Expired |
| US7838567B2 | Foams made from water-absorbing, basic polymers, method for the production and utilization thereof | Chemistry; Metallurgy | 2 | Active |
| US9234098B2 | Method for the production of composite materials | Chemistry; Metallurgy | 2 | Active |
| US8697764B2 | Elastic inorganic-organic hybrid foam | Emerging Cross-Sectional Technologies | 2 | Active |
| US7189575B2 | Method and device for determining the swelling behavior of polymer gels under pressure | Physics | 1 | Expired |
| US11091601B2 | Process for producing an in-situ foam | Chemistry; Metallurgy | 0 | Active |
| US8796343B2 | Use of water-absorbent, predominantly open-celled crosslinked acid-functional addition polymer foams in hygiene articles | Human Necessities | 0 | Active |
| US5962596A | Polyformamides and polyamines | Chemistry; Metallurgy | 0 | Expired |
| US10808116B2 | Process for producing in-situ foam | Chemistry; Metallurgy | 0 | Active |
| US5986013A | Polyformamides and polyamines | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.