Ditmar Kischkel
34Patents
9h-index
37Co-inventors
75Inventor score
Filing activity: Sep 8, 1987 → Nov 8, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5516447A | Method of producing granular surfactants | Chemistry; Metallurgy | 39 | Expired |
| US6683035B1 | Gel compositions containing alkoxylated carboxylic acid esters, their use in cleaning toilets and toilet cleaning products containing the same | Chemistry; Metallurgy | 27 | Expired |
| US6897193B2 | Hydroxy mixed ethers and polymers in the form of solid preparations as a starting compound for laundry detergents, dishwashing detergents and cleaning compositions | Chemistry; Metallurgy | 18 | Expired |
| US6797687B2 | Gemini surfactant compositions | Chemistry; Metallurgy | 18 | Expired |
| US5397507A | Process for the production of washing- and cleaning-active granules | Chemistry; Metallurgy | 17 | Expired |
| US6620209B2 | Laundry detergent compositions | Chemistry; Metallurgy | 16 | Expired |
| US6521578B1 | Cleaning agents for hard surfaces | Chemistry; Metallurgy | 13 | Expired |
| US6977239B1 | Detergent tablets | Chemistry; Metallurgy | 11 | Expired |
| US6455488B1 | Process of making alkyl sulfate granulates | Chemistry; Metallurgy | 10 | Expired |
| US6479452B2 | Surfactant granules with an improved dissolving rate comprising alky and alkenyl sulfates | Chemistry; Metallurgy | 8 | Expired |
| US5668100A | Detergent mixtures and detergents or cleaning formulations with improved dissolving properties | Chemistry; Metallurgy | 7 | Expired |
| US5476610A | Process for stabilizing aqueous zeolite suspensions | Chemistry; Metallurgy | 7 | Expired |
| US5597794A | Process for the production of detergent surfactant granules comprising a recycle step | Chemistry; Metallurgy | 6 | Expired |
| US7049279B1 | Process for preparing detergent granules with an improved dissolution rate | Chemistry; Metallurgy | 6 | Expired |
| US6362157B1 | Method for producing tenside granulates with a higher bulk density | Chemistry; Metallurgy | 5 | Expired |
| US4820448A | Surfactant mixtures and their use | Chemistry; Metallurgy | 5 | Expired |
| US6616705B2 | Laundry detergent compositions | Chemistry; Metallurgy | 4 | Expired |
| US6903066B2 | Processes for preparing light-colored alk(en)yl oligoglycoside mixtures | Chemistry; Metallurgy | 4 | Expired |
| US7091168B2 | Liquid detergents | Chemistry; Metallurgy | 3 | Expired |
| US5939372A | Use of detergent mixtures for the production of toilet blocks | Chemistry; Metallurgy | 3 | Expired |
| US5501817A | Process for stabilizing aqueous zeolite suspensions using a linear fatty alcohol polyglycol ether having a specific degree of ethoxylation | Chemistry; Metallurgy | 3 | Expired |
| US6165961A | Water-free surface-active agents | Chemistry; Metallurgy | 3 | Expired |
| US6919305B2 | Solid detergent compositions and methods of preparing the same | Chemistry; Metallurgy | 2 | Expired |
| US7186678B2 | Tenside granules with improved disintegration rate | Chemistry; Metallurgy | 2 | Expired |
| US5824633A | Heterogeneous surfactant granules | Chemistry; Metallurgy | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.