Inventor

Douglas A. Kreckel

Inventor

Webster, NY, US

Overview

1976–2012

Patent span

Physics

Primary field (CPC G)

Patents· 10 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G03Gprimary

G03GElectrography73%

B41JTypewriters9%

C25DProcesses for the electrolytic or electrophoretic production of coatings9%

H04NPictorial communication, e.g. television9%

PatentTitleYear

8,145,078'Toner concentration system control with state estimators and state feedback methods'2012 7,498,578'Method and system for calibrating a reflection infrared densitometer in a digital image reproduction machine'2009 7,177,557'Method for calculating toner age and a method for calculating carrier age for use in print engine diagnostics'2007 6,941,084'Compensating optical measurements of toner concentration for toner impaction'2005 6,865,349'Machine post-launch process optimization through wireless connected customer replaceable unit memory'2005 6,735,399'Post-launch process optimization of replaceable sub-assembly utilization through customer replaceable unit memory programming'2004 6,606,463'Optical toner concentration sensor'2003 5,613,174'Imaging device with positive air pressure and electrostatic precipitator'1997 5,191,293'Park and ride method for determining photoreceptor potentials'1993 3,963,587'Process for electroforming nickel foils'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–2012Patents assigned to XEROX CORP (10)· patent assignee history

1976–2012Based in Webster, NY, US· patent location history

2012Patents assigned to DIANAT SOHAIL A (1)· patent assignee history

2012Patents assigned to KRECKEL DOUGLAS (1)· patent assignee history

2012Patents assigned to MESTHA LALIT KESHAV (1)· patent assignee history

2012Patents assigned to VENKITARAMAN BHARATHI (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
XEROX CORP	10	1976–2012
DIANAT SOHAIL A	1	2012
KRECKEL DOUGLASself	1	2012
MESTHA LALIT KESHAV	1	2012
VENKITARAMAN BHARATHI	1	2012

Locations

Location	Patents	Span
Webster, New York, US	10	1976–2012