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Darell Dean Cronch
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Georgetown, KY, US
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Patents Grants
last 30 patents
Information
Patent Grant
Switching power supply, method of operation and device-and-power-su...
Patent number
7,227,652
Issue date
Jun 5, 2007
Lexmark International, Inc.
Darell D. Cronch
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Print head energy storage
Patent number
7,011,395
Issue date
Mar 14, 2006
Lexmark International, Inc.
Frank Edward Anderson
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Dynamic printer operating system
Patent number
6,954,278
Issue date
Oct 11, 2005
Lexmark International, Inc.
Darell Dean Cronch
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Encoder with mask spacer contacting the encoder film
Patent number
6,624,407
Issue date
Sep 23, 2003
Lexmark International, Inc.
Dariush Aboonasry
G01 - MEASURING TESTING
Information
Patent Grant
Less restrictive print head cartridge installation in an ink jet pr...
Patent number
6,151,041
Issue date
Nov 21, 2000
Lexmark International, Inc.
John Philip Bolash
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Line find feature for an electronic typewriter
Patent number
4,789,257
Issue date
Dec 6, 1988
International Business Machines Corporation
John K. Brown
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Self-adjusting homing for a stepping motor
Patent number
4,706,008
Issue date
Nov 10, 1987
IBM Corporation
Darell D. Cronch
G05 - CONTROLLING REGULATING
Patents Applications
last 30 patents
Information
Patent Application
Print head energy storage
Publication number
20040263575
Publication date
Dec 30, 2004
Lexmark International, Inc.
Frank Edward Anderson
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
Switching power supply, method of operation and device-and-power-su...
Publication number
20040075703
Publication date
Apr 22, 2004
Darell D. Cronch
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS