Wella GmbH
445Patents
15Active
445Granted
42Portfolio score
Filing activity: Sep 9, 1974 → Sep 1, 2011 · 15 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5061289A | Oxidation hair dye composition containinng diaminopyrazol derivatives and new diaminopyrazol derivatives | Chemistry; Metallurgy | 420 | Expired |
| US5380340A | Hair dye containing aminopyrazole derivatives as well as pyrazole derivatives | Chemistry; Metallurgy | 391 | Expired |
| US5766576A | Oxidation hair dye compositions containing 3,4,5-triaminopyrazole derivatives and 3,4,5-triaminopyrazole derivatives | Textiles; Paper | 365 | Expired |
| US5534267A | Composition for the oxidative dyeing of hair containing 4,5-diaminopyrazole derivatives as well as new 4,5-diaminopyrazole derivatives and process for their synthesis | Chemistry; Metallurgy | 327 | Expired |
| US5663366A | Process for the synthesis of 4,5-diaminopyrazole derivatives useful for dyeing hair | Human Necessities | 300 | Expired |
| US6589509B2 | Clear, two-phase, foam-forming aerosol hair care product | Human Necessities | 133 | Expired |
| US5138245A | Holder for a rechargeable tool | Emerging Cross-Sectional Technologies | 122 | Expired |
| US6171347A | Compositions, methods and kits for reductively removing color from dyed hair | Textiles; Paper | 111 | Expired |
| US5613623A | Two-chamber container | Performing Operations; Transporting | 110 | Expired |
| US6305578A | Device for mixing, foaming and dispensing liquids from separate compressed-gas containers | Performing Operations; Transporting | 100 | Expired |
| US6328950A | Pigment-containing foamable gel and device producing a foam from said gel | Human Necessities | 95 | Expired |
| US6582679B2 | Hair wax products containing waxes, non-volatile oils and volatile hydrophobic materials | Emerging Cross-Sectional Technologies | 91 | Expired |
| US7412781B2 | Device for a hot air shower | Mechanical Engineering; Lighting; Heating | 89 | Expired |
| USD379933S | Bottle | General | 75 | Expired |
| USD415031S | Container | General | 59 | Expired |
| US4877065A | Decanting device for liquids, e.g. permanent wave agents | Performing Operations; Transporting | 52 | Expired |
| USD586955S1 | Combined hair cutting device and base | General | 51 | Expired |
| USD335817S | Sprayer | General | 49 | Expired |
| US4883656A | Composition and method for the oxidative dyeing of hair | Human Necessities | 49 | Expired |
| US4817903A | Arrangement for carrying horizontally and vertically adjustable data processing devices | Emerging Cross-Sectional Technologies | 47 | Expired |
| US4203517A | Container | Emerging Cross-Sectional Technologies | 46 | Expired |
| US4855130A | Hair treating compositions and processes for improving the condition of hair | Physics | 45 | Expired |
| US4585149A | Double container for two separated fluids | Performing Operations; Transporting | 45 | Expired |
| US6173717A | Hair shaping method using acidic aqueous intermediate rinse to prevent overcurling | Human Necessities | 42 | Expired |
| USD351796S | Bottle | General | 42 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.