Berol Kemi AB
48Patents
0Active
48Granted
40Portfolio score
Filing activity: Oct 17, 1974 → Oct 11, 1991
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4144122A | Quaternary ammonium compounds and treatment of cellulose pulp and paper therewith | Textiles; Paper | 164 | Expired |
| US4855505A | Promoted nickel and/or cobalt catalyst, its use, and process performed in its presence | Performing Operations; Transporting | 85 | Expired |
| US4303471A | Method of producing fluffed pulp | Emerging Cross-Sectional Technologies | 76 | Expired |
| US4650000A | Acidizing method using microemulsion | Emerging Cross-Sectional Technologies | 67 | Expired |
| US4358368A | Process for the froth flotation of calcium phosphate-containing minerals and flotation agents therefor | Performing Operations; Transporting | 42 | Expired |
| US4058489A | Detergent composition having textile softening and antistatic effect | Chemistry; Metallurgy | 34 | Expired |
| US4134610A | Process for the preparation of semi-rigid polyurethane foam having exceptional shock-absorbing properties and vehicle bumpers thereof | Emerging Cross-Sectional Technologies | 33 | Expired |
| US4112231A | Process for the condensation of epoxides with organic compounds having an active hydrogen | Chemistry; Metallurgy | 33 | Expired |
| US5204060A | Method for disinfection | Human Necessities | 30 | Expired |
| US4839287A | Process for the transesterification of triglycerides in an aqueous microemulsion reaction medium in the presence of lipase enzyme | Chemistry; Metallurgy | 25 | Expired |
| US4710267A | Process for reducing discoloration and/or tackiness in processing waste paper fibers | Emerging Cross-Sectional Technologies | 24 | Expired |
| US4384965A | Method for the mechanical working of metals and lubricant concentrate | Chemistry; Metallurgy | 22 | Expired |
| US4315755A | Hydrocarbon oils containing 1 to 10 percent emulsified water and emulsifiers therefor | Chemistry; Metallurgy | 20 | Expired |
| US4701434A | Promoted nickel and/or cobalt catalyst, its use, and process performed in its presesnce | Performing Operations; Transporting | 19 | Expired |
| US4018696A | Liquid detergent composition | Chemistry; Metallurgy | 17 | Expired |
| US4830739A | Process and composition for the froth flotation beneficiation of iron minerals from iron ores | Performing Operations; Transporting | 17 | Expired |
| US4564461A | Method for the mechanical working of cast iron and an aqueous concentrate to be used in the method | Chemistry; Metallurgy | 15 | Expired |
| US4659332A | Process for dry-cleaning textiles and microemulsion dry cleaning composition for the use therein | Textiles; Paper | 15 | Expired |
| US4863890A | Process for preparing a ruthenium-promoted, halogen-containing nickel and/or cobalt catalyst and a catalyst prepared by the process | Chemistry; Metallurgy | 15 | Expired |
| US4976919A | Method for mechanically working cobalt-containing metal | Chemistry; Metallurgy | 14 | Expired |
| US4732667A | Process and composition for the froth flotation beneficiation of iron minerals from iron ores | Performing Operations; Transporting | 14 | Expired |
| US4226791A | Method and a reagent mixture for removing metal ions from an aqueous solution by means of liquid-liquid extraction | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5047197A | Cellulose derivative spinning solutions having improved processability and process | Textiles; Paper | 11 | Expired |
| US4545898A | Process for froth flotation | Performing Operations; Transporting | 11 | Expired |
| US4070276A | Flotation process of lead-, copper-, uranium- and rare earth minerals | Performing Operations; Transporting | 10 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.