Patents by Inventor Manuela Rau

Manuela Rau 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).

  • Ink for ink jet printing and method of using the ink
    Patent number: 6998436
    Abstract: An ink for ink jet printing systems, preferably for continuous jet systems, contains as primary components coloring agents, organic solvents, conductivity mediators, and at least two binding agents, wherein the first binding agent is a bonding agent, and the second binding agent is a fixing agent and an agent for adjusting the viscosity. The ink is used for printing or writing on objects of plastics material, particularly rubber or silicone.
    Type: Grant
    Filed: January 30, 2002
    Date of Patent: February 14, 2006
    Assignee: J.S. Staedtler GmbH & Co.
    Inventors: Manuela Rau, Wolfgang Storck
  • Ink for ink jet printing and method of using the ink
    Publication number: 20020115746
    Abstract: An ink for ink jet printing systems, preferably for continuous jet systems, contains as primary components coloring agents, organic solvents, conductivity mediators, and at least two binding agents, wherein the first binding agent is a bonding agent, and the second binding agent is a fixing agent and an agent for adjusting the viscosity. The ink is used for printing or writing on objects of plastics material, particularly rubber or silicone.
    Type: Application
    Filed: January 30, 2002
    Publication date: August 22, 2002
    Inventors: Manuela Rau, Wolfgang Storck
  • Ink cartridge with closing device
    Patent number: 6102535
    Abstract: An ink cartridge with a closing device for ink jet printers or similar writing, printing or drawing units, wherein the ink cartridge in the printer as well as the closing device are releasably mounted on the ink cartridge, wherein the ink cartridge can be filled manually or automatically with ink from an external tank, wherein the ink cartridge includes at least one housing, an ink reservoir and a refill opening, and wherein the refill opening is closeable by the closing device.
    Type: Grant
    Filed: August 13, 1999
    Date of Patent: August 15, 2000
    Assignee: J.S. Staedtler GmbH & Co.
    Inventors: Ralph Papenfuhs, Manuela Rau