Patents by Inventor Charles Laleman

Charles Laleman 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).

  • Use of blood in the cement, mortar and concrete industry for obtaining a lightened material
    Patent number: 4203674
    Abstract: The present invention relates to the use of blood in the construction and building industry, whereby blood and extracts of blood containing haemoglobin are used as air entraining colloids. The recommended process for preparing a lightened material consists in associating a construction element chosen from the cements, mortars and concretes, with at least one air entraining colloid chosen from whole blood, globules, red blood corpuscles and haemoglobin. The invention also relates to the lightened material obtained according to this process.
    Type: Grant
    Filed: December 5, 1977
    Date of Patent: May 20, 1980
    Inventor: Charles Laleman