Degussa-Huels AG
211Patents
0Active
211Granted
42Portfolio score
Filing activity: Mar 10, 1994 → Jun 30, 2003
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6211237A | Aqueous disinfecting agent containing performic acid and peracetic acid process for production and process for use thereof | Chemistry; Metallurgy | 83 | Expired |
| US6202494A | Process and apparatus for measuring density and mass flow | Physics | 78 | Expired |
| US6475951B1 | Catalyst material | Emerging Cross-Sectional Technologies | 73 | Expired |
| US6096226A | Method of combating phytopathogenic microorganisms in the water circuits of greenhouses | Chemistry; Metallurgy | 62 | Expired |
| US6685769B1 | Aqueous carbon black dispersions | Chemistry; Metallurgy | 53 | Expired |
| US6251989A | Oligomerized organopolysiloxane cocondensate, its production and its use for treatment of surfaces | Chemistry; Metallurgy | 53 | Expired |
| US6284793A | Process for preventing contamination of the aquatic environment with organisms from ballast water | Chemistry; Metallurgy | 52 | Expired |
| US6375921B1 | Bubble column and the use thereof | Performing Operations; Transporting | 50 | Expired |
| US6191122A | Partially hydrophobic precipitated silicas | Chemistry; Metallurgy | 50 | Expired |
| US6413449B1 | Method of using catalyst for steam reforming of alcohols | Emerging Cross-Sectional Technologies | 46 | Expired |
| US5928981A | Diesel catalytic converter | Emerging Cross-Sectional Technologies | 46 | Expired |
| US6133466A | Acryloxypropyl- or methacryloxypropyl-functional siloxane oligomers | Chemistry; Metallurgy | 46 | Expired |
| US6217728A | Electrolysis cell | Emerging Cross-Sectional Technologies | 44 | Expired |
| US6106803A | Granulates which contain titanium silicalite-1 | Emerging Cross-Sectional Technologies | 42 | Expired |
| US6677264B1 | Catalyst for cleaning up the exhaust gases of a diesel engine | Emerging Cross-Sectional Technologies | 41 | Expired |
| US5959005A | Silanized silica | Emerging Cross-Sectional Technologies | 41 | Expired |
| US6500217B1 | Process for applying electrode layers to a polymer electrolyte membrane strip for fuel cells | Emerging Cross-Sectional Technologies | 39 | Expired |
| US6362251B1 | Dental material comprising porous glass ceramics, porous glass ceramics, processes and use | Human Necessities | 39 | Expired |
| US6471763B1 | Oxidatively aftertreated carbon black | Chemistry; Metallurgy | 39 | Expired |
| US5965033A | Process for disinfecting aqueous solutions | Emerging Cross-Sectional Technologies | 37 | Expired |
| US6288256A | Fluoroalkyl-functional organopolysiloxane-containing compositions based on water, a process for their preparation and their use | Emerging Cross-Sectional Technologies | 37 | Expired |
| US6281288A | Reinforced molding material | Chemistry; Metallurgy | 36 | Expired |
| US6180076A | Readily dispersible precipitated silica | Chemistry; Metallurgy | 35 | Expired |
| US6180075A | Exhaust gas catalyst | Emerging Cross-Sectional Technologies | 34 | Expired |
| US6235910A | Process for the preparation of imidazolidine-2, 4-diones | Chemistry; Metallurgy | 34 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.