RG

Robert E. Grace

Xerox: 16 patents #879 of 8,622Top 15%
Overall (All Time): #279,239 of 4,157,543Top 7%
17
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7162172 Semi-automatic image quality adjustment for multiple marking engine systems Michael C. Mongeon, Hugh W. Griffith, Krzysztof J. Less, Tim D. M. Enskat 2007-01-09
6871029 Process for minimizing toner usage in minimum area coverage patches and minimizing toner churning Grace T. Brewington 2005-03-22
6668146 Hybrid scavengeless development using direct current voltage shift to remove wire history Jeffrey C. Folkins, Rasin Moser, William H. Wayman, Larry G. Hogestyn 2003-12-23
6639669 Diagnostics for color printer on-line spectrophotometer control system Fred F. Hubble, III, Tonya L. Love, Lalit Keshav Mestha, Gary W. Skinner, Dennis M. Diehl +2 more 2003-10-28
6404997 Method and apparatus for dynamically controlling image density 2002-06-11
6321043 Control of halftone and solid area image quality by way of a halftone discharge ratio 2001-11-20
6134398 Electrostatographic reproduction machine having dual mode development unit control apparatus and method 2000-10-17
5887221 Signature sensing for optimum toner control with donor roll 1999-03-23
5749023 Adaptive feed forward compensation for time varying toner cohesivity Guru B. Raj, James M. Pacer 1998-05-05
5613176 Image on image process color with two black development steps 1997-03-18
5559579 Closed-loop developability control in a xerographic copier or printer Mark A. Gwaltney 1996-09-24
5051781 Xerographic setup and operating system for electrostatographic reproduction machines Daniel C. Roehrs, Angelo Caruso, Robert M. Mara, John G. Elliot, Patricia J. Saraceno +1 more 1991-09-24
5045882 Xerographic setup and operating system for electrostatographic reproduction machines Daniel C. Roehrs, Angelo Caruso, Robert M. Mara, John G. Elliot, Patricia J. Saraceno +1 more 1991-09-03
5016050 Xerographic setup and operating system for electrostatographic reproduction machines Daniel C. Roehrs, Angelo Caruso, Robert M. Mara, John G. Elliot, Patricia J. Saraceno +1 more 1991-05-14
5006892 Xerographic setup and operating system for electrostatographic reproduction machines Daniel C. Roehrs, Angelo Caruso, Robert M. Mara, John G. Elliot, Patricia J. Saraceno +1 more 1991-04-09
4512652 Control scheme compensating for changing characteristics of a photoconductive member used in an electrophotographic printing machine Kenneth J. Buck, Thomas Hayes 1985-04-23
4318610 Control system for an electrophotographic printing machine 1982-03-09