Robert D. Mitchell

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Wilmington, DE, US

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Patents Grantslast 30 patents

Information Patent Grant
Process for making pigmented ink jet inks
- Patent number 5,026,427
- Issue date Jun 25, 1991
- E. I. DuPont de Nemours and Company
- Robert D. Mitchell
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Liquid electrostatic developers containing modified resin particles
- Patent number 4,798,778
- Issue date Jan 17, 1989
- E. I. Du Pont de Nemours and Company
- El-Sayed Lyla M.
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Polyhydroxy charging adjuvants for liquid electrostatic developers
- Patent number 4,734,352
- Issue date Mar 29, 1988
- E. I. Du Pont de Nemours and Company
- Robert D. Mitchell
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Liquid electrostatic developers containing aromatic hydrocarbons
- Patent number 4,663,264
- Issue date May 5, 1987
- E. I. Du Pont de Nemours and Company
- Robert D. Mitchell
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process for preparation of liquid toners for electrostatic imaging...
- Patent number 4,631,244
- Issue date Dec 23, 1986
- E. I. Du Pont de Nemours and Company
- Robert D. Mitchell
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY