Patents Represented by Attorney, Agent or Law Firm Abel, Frayne & Schwab
  • Composition for the flotation of useful minerals products
    Patent number: 6568537
    Abstract: There is proposed a composition for the flotation of useful minerals, comprising a frother based on dimethyl(isopropenylethynyl)carbinol and a collector, the frother, for improving the technological flotation characteristics, having the following chemical composition, in wt. %: dimethyl(isopropenylethynyl)carbinol, 95.0-98.0; tetramethylbutynediol, 0.1-1.5; diisopropenylacetylene, 0.1-1.0; 2,5-dimethyl-1,4-hexadien-3-one, 1.5-2.5.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: May 27, 2003
    Assignee: Zakrtoe Aktsionermoe Obschestvo “Strimer - Tsentr”
    Inventors: SErgei Anatolievich Schelkunov, Oleg Anatolievich Malyshev, Evgeny Mikhailovich Dubovsky, Yakov Yakovlevich Mamontov, Alexandr Anatolievich Maximov
  • Rack for skis
    Patent number: D551004
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: September 18, 2007
    Assignee: CWA Construction S.A.
    Inventor: Georg Riser