Patents by Inventor Ugo Claudio Pfeiffer

Ugo Claudio Pfeiffer 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).

  • Additives based on hydroxyalkyl guar derivatives for use in mortars and mortars including them
    Patent number: 6706112
    Abstract: Disclosed are cementitious mortar additives comprising a hydroxyalkyl guar derivative having a molar substitution of from about 0.7 to about 3. Also disclosed are dry cementitious mortar compositions including from 0.1 to 1.5% by weight of the additive and cured cementitious mortars obtained by addition of water to the dry cementitious mortar compositions.
    Type: Grant
    Filed: June 3, 2002
    Date of Patent: March 16, 2004
    Assignee: Lamberti SpA
    Inventors: Enrico Sironi, Giampietro Margheritis, Ugo Claudio Pfeiffer, Giuseppe Li Bassi
  • ADDITIVES BASED ON HYDROXYALKYL GUAR DERIVATIVES FOR USE IN MORTARS AND MORTARS INCLUDING THEM
    Publication number: 20030221592
    Abstract: Disclosed are cementitious mortar additives including at least a hydroxyalkyl guar derivative. Also dislcosed are dry cementitious mortar competitions including from 0.1 to 1.5% by weight of the additive and cured cementitious mortars obtained by addition of water to the dry cementitious mortar compositions.
    Type: Application
    Filed: June 3, 2002
    Publication date: December 4, 2003
    Applicant: Lamberti SpA
    Inventors: Enrico Sironi, Giampietro Margheritis, Ugo Claudio Pfeiffer, Giuseppe Li Bassi