Inventor
Darell D. Cronch
Inventor
Georgetown, KY, US
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B41Jprimary
B41JTypewriters44%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests22%
G01DMeasuring not specially adapted for a specific variable11%
G05BControl or regulating systems in general11%
G06FElectric digital data processing11%
PatentTitleYear
7,227,652'Switching power supply, method of operation and device-and-power-supply assembly'20077,011,395'Print head energy storage'20066,954,278'Dynamic printer operating system'20056,624,407'Encoder with mask spacer contacting the encoder film'20036,151,041'Less restrictive print head cartridge installation in an ink jet printer'2000D0320978'Word processor system unit'19914,789,257'Line find feature for an electronic typewriter'19884,706,008'Self-adjusting homing for a stepping motor'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987–1988Patents assigned to IBM (2)· patent assignee history
1987–2007Based in Georgetown, KY, US· patent location history
1991–2007Patents assigned to LEXMARK INT INC (6)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| LEXMARK INT INC | 6 | 1991–2007 |
| IBM | 2 | 1987–1988 |
Locations
| Location | Patents | Span |
|---|---|---|
| Georgetown, KY, US | 8 | 1987–2007 |