Patents by Inventor Johan A. Prommel

Johan A. Prommel 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).

  • Process for the agglomeration of solids
    Patent number: 4415445
    Abstract: Finely divided solids suspended in liquids (such as aqueous slurries of coal fines) are agglomerated by flowing those suspensions and a binding agent into a turbulent-flow agglomeration zone along with a slurry of seed pellets having sizes and proportions correlated with those of the finely divided solids and the agglomerates being formed to induce particle growth by layering rather than by coalescence.
    Type: Grant
    Filed: April 23, 1982
    Date of Patent: November 15, 1983
    Assignee: Shell Oil Company
    Inventors: Arie Van Hattem, Johan A. Prommel, Augustinus W. M. Roes