SKW Trostberg Aktiengesellschaft
156Patents
0Active
156Granted
41Portfolio score
Filing activity: Mar 8, 1978 → Dec 27, 2000
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4818288A | Dispersant for concrete mixtures of high salt content | Emerging Cross-Sectional Technologies | 141 | Expired |
| US5798425A | Co-polymers based on oxyalkyleneglycol alkenyl ethers and unsaturated dicarboxylic acid derivatives | Chemistry; Metallurgy | 122 | Expired |
| US4980180A | Process for the removal of .beta.-cyclodextrin from egg yolk or egg yolk plasma | Chemistry; Metallurgy | 40 | Expired |
| US5405633A | Process for the extraction of fats and oils | Chemistry; Metallurgy | 36 | Expired |
| US5739212A | Water-soluble graft polymers | Chemistry; Metallurgy | 36 | Expired |
| US4284433A | Additives for water-hardening binding agents | Chemistry; Metallurgy | 34 | Expired |
| US4925485A | Process for the isolation of noble metals | Emerging Cross-Sectional Technologies | 30 | Expired |
| US6025303A | Solids composition based on clay minerals and use thereof | Emerging Cross-Sectional Technologies | 24 | Expired |
| US4561947A | Process for the recovery of noble metals from ores; which process uses thiourea | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5718937A | Process for the extraction of natural aromas from natural substances containing fat and oil | Human Necessities | 19 | Expired |
| US5705599A | Graft polymers of ketone-aldehyde condensation and co-condensation products | Chemistry; Metallurgy | 19 | Expired |
| US4234332A | Aqueous fertilizer solutions containing dicyandiamide | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5061505A | Process for the removal of cholesterol and/or cholesterol esters from foodstuffs | Human Necessities | 18 | Expired |
| US5063077A | Process for the removal of cholesterol and cholesterol esters from egg yolk | Chemistry; Metallurgy | 18 | Expired |
| US4569648A | Self-cleaning rotating drum | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US4632837A | Process for the production of concentrated extracts from plants | Human Necessities | 17 | Expired |
| US5626756A | Process for fractionating and refining natural lipid substances | Chemistry; Metallurgy | 16 | Expired |
| US4657593A | Modifying surface tension of finely-divided materials in a liquid | Emerging Cross-Sectional Technologies | 16 | Expired |
| US6150437A | Flow improving agents for binder suspensions containing cement | Chemistry; Metallurgy | 16 | Expired |
| US5026457A | Process for sizing in the production of paper, cardboard, paperboard and other cellulose containing materials | Textiles; Paper | 16 | Expired |
| US5342633A | Process for the production of egg yolk with reduced cholesterol content | Human Necessities | 16 | Expired |
| US4764211A | Fine-grained agent for desulfurizing molten iron | Chemistry; Metallurgy | 16 | Expired |
| US4592777A | Method, process and composition for desulfurizing pig-iron melts | Chemistry; Metallurgy | 14 | Expired |
| US4933422A | Accelerators for epoxide curing agents containing cyanamide | Chemistry; Metallurgy | 14 | Expired |
| US4551166A | Nitrogen fertilizer and process for its manufacture | Emerging Cross-Sectional Technologies | 14 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.