RC

Robert P. Callaway

HP HP: 8 patents #5,870 of 16,619Top 40%
L' L'Oreal: 1 patents #1,282 of 2,221Top 60%
Overall (All Time): #564,751 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10856648 Systems and methods for measuring and indicating brush head life Iranpour Khormaei 2020-12-08
8719599 Monitoring subsystem power Douglas Harriman, Jon Johnson 2014-05-06
6674260 DC motor control Douglas Harriman, Robert D. Davis 2004-01-06
6485383 Thermal compensation belt drive tensioner Jeffrey T. Hendricks 2002-11-26
6340221 Ink jet print carriage drive system that applies drive force at location displaced from drive belt Matt G. Driggers 2002-01-22
6017114 Shifted element scanning/printing routine coordinated with media advance Steven B. Elgee, Steve O. Rasmussen 2000-01-25
5898288 Inexpensive motion control using DC motors Huston W. Rice, George Barbehenn, Jason Quintana 1999-04-27
5663624 Closed-loop method and apparatus for controlling acceleration and velocity of a stepper motor 1997-09-02
4759649 Dual axis paper drive Kieran B. Kelly, William R. Huseby, Chris A. Rasmussen 1988-07-26