Patents by Inventor Johannes M. DeBeer

Johannes M. DeBeer 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).

  • Drilling mud additive
    Patent number: 5401719
    Abstract: A drilling mud additive comprising graphite, a silicate such as phlogopite and a silicone such as dimethylpolysiloxane and drilling muds including the additive.
    Type: Grant
    Filed: July 27, 1994
    Date of Patent: March 28, 1995
    Assignee: Chemical Services Limited
    Inventor: Johannes M. DeBeer