Patents by Inventor Bronislav H. May

Bronislav H. May has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Aminomethylenephosphonate compositions
    Patent number: 4764303
    Abstract: Granular or powder compositions containing diethylenetriaminepenta(methylenephosphonic acid) and/or its salts in admixture with sodium sulphate and/or bisulphate in an amount, expressed as the equivalent amount of anhydrous sodium sulphate, of at least 60% of the dry weight of the diethylenetriaminepenta(methylenephosphonic acid) and/or its salts can be stored for extended periods while remaining in the form of free-flowing solids.
    Type: Grant
    Filed: November 24, 1986
    Date of Patent: August 16, 1988
    Assignee: Monsanto Company
    Inventors: Brigitte M. J. Vandenbulcke, Bronislav H. May
  • Aminomethylenephosphonic acid solutions
    Patent number: 4728460
    Abstract: Aqueous solutions of aminomethylenephosphonic acid selected from diethylenetriaminepenta(methylenephosphonic acid), diethylenetriaminetetra(methylenephosphonic acid), diethylenetriaminetri(methylenephosphonic acid) and mixtures thereof are stabilized against crystallization of said aminomethylenephosphonic acid by including non-oxidizing mineral acid in such solutions in an amount stoichiometrically equivalent to at least 10% hydrochloric acid by weight of the solution.
    Type: Grant
    Filed: April 24, 1986
    Date of Patent: March 1, 1988
    Assignee: Monsanto Company
    Inventors: Michel A. O. Ledent, Bronislav H. May
  • Granular aminomethylenephosphonate
    Patent number: 4666623
    Abstract: Aminomethylenephosphonate-coated granules of substantially water-insoluble silicate having improved stability in the presence of peroxygen compounds. Such coatings can comprise alkali metal aminomethylenephosphonate of the formula: ##STR1## where each R is H, CH.sub.2 PO.sub.3 H.sub.2 or CH.sub.2 PO.sub.3 HM or CH.sub.2 PO.sub.3 M.sub.2 ; where M is an alkali metal; and n is 0 or an integer, preferably an integer of from 1 to 4. The coatings are substantially free of peroxygen compounds and peroxy compound precursors.
    Type: Grant
    Filed: February 21, 1986
    Date of Patent: May 19, 1987
    Assignee: Monsanto Europe S.A.
    Inventors: Bronislav H. May, Hubert H. Nijs, Brigitte M. J. Vandenbulcke
  • Aminomethylenephosphonic acid solutions
    Patent number: 4615840
    Abstract: Aqueous solutions of aminomethylenephosphonic acid selected from diethylenetriaminepenta(methylenephosphonic acid), diethylenetriaminetetra(methylenephosphonic acid), diethylenetriaminetri(methylenephosphonic acid) and mixtures thereof are stabilized against crystallization of said aminomethylenephosphonic acid by including non-oxidizing mineral acid in such solutions in an amount stoichiometrically equivalent to at least 10% hydrochloric acid by weight of the solution.
    Type: Grant
    Filed: October 11, 1984
    Date of Patent: October 7, 1986
    Assignee: Monsanto Europe S.A.
    Inventors: Michel A. O. Ledent, Bronislav H. May
  • Aminomethylenephosphonic acid solutions
    Patent number: 4477390
    Abstract: Aqueous solutions of aminomethylenephosphonic acid selected from diethylenetriaminepenta(methylenephosphonic acid). diethylenetriaminetetra(methylenephosphonic acid), diethylenetriaminetri(methylenephosphonic acid) and mixtures thereof are stabilized against crystallization of said aminomethylenephosphonic acid by including non-oxidizing mineral acid in such solutions in an amount stoichiometrically equivalent to at least 10% hydrochloric acid by weight of the solution.
    Type: Grant
    Filed: August 21, 1981
    Date of Patent: October 16, 1984
    Assignee: Monsanto Company
    Inventors: Michel A. O. Ledent, Bronislav H. May
  • Scale inhibitors
    Patent number: 4201688
    Abstract: Compositions comprising (a) diethylenetriaminopenta(methylenephosphonic acid) or an alkali metal salt thereof and (b) aminotri(methylenephosphonic acid) or an alkali metal salt thereof wherein the amount of (b) is from 5 to 70% of the total weight of (a) and (b) are effective stabilizers against precipitation and scaling of alkaline solutions containing potentially scale-forming components.
    Type: Grant
    Filed: December 16, 1977
    Date of Patent: May 6, 1980
    Assignee: Monsanto Europe S.A.
    Inventor: Bronislav H. May