Martin Hellsten
16Patents
8h-index
9Co-inventors
65Inventor score
Filing activity: Jun 13, 1975 → Jun 21, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4830739A | Process and composition for the froth flotation beneficiation of iron minerals from iron ores | Performing Operations; Transporting | 17 | Expired |
| US5339855A | Use of alkoxylated alkanolamide as friction-reducing agent | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4732667A | Process and composition for the froth flotation beneficiation of iron minerals from iron ores | Performing Operations; Transporting | 14 | Expired |
| US4038102A | Asphalt compositions having improved adhesion to aggregate | Chemistry; Metallurgy | 11 | Expired |
| US5902784A | Use of a betaine surfactant together with an anionic surfactant as a drag-reducing agent | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5700766A | Use of an amphoteric surfactant as a friction-reducing agent | Chemistry; Metallurgy | 9 | Expired |
| US5911236A | Alkoxylated alkanolamide together with an ionic surfactant as friction-reducing agent | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5979479A | Use of alkoxylated alkanolamide together with alkoxylated alcohol as a friction-reducing agent | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5183476A | Ethanol fuel and its use as a diesel fuel | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US4828687A | Froth flotation process and collector therefor | Performing Operations; Transporting | 4 | Expired |
| US4795578A | Process and composition for the froth flotation beneficiation of iron minerals from iron ores | Performing Operations; Transporting | 3 | Expired |
| US4876122A | Package capable of preventing foam formation, method of manufacturing such a package, and antifoaming agent | Emerging Cross-Sectional Technologies | 2 | Expired |
| US8653009B2 | Method for preventing the formation of calcium carboxylate deposits in the dewatering process for crude oil/water streams | Chemistry; Metallurgy | 1 | Active |
| US8821754B2 | Additive for preserving the fluidity of fluids containing gas hydrates | Emerging Cross-Sectional Technologies | 1 | Active |
| US8375971B2 | Use of a zwitterionic surfactant together with an anionic ether-containing surfactant as a drag-reducing agent | Emerging Cross-Sectional Technologies | 0 | Active |
| US7987866B2 | Zwitterionic surfacant together with an anionic ether-containing surfactant as a drag-reducing agent | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.