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Inventor

Donald B. Clark

Inventor
Carlsbad, CA, US

Overview

7→
Patents
1976–2016
Patent span
Performing operations
Primary field (CPC B)

Patents· 7 as inventor

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

B05Bprimary
B05BSpraying apparatus30%
A21CMachines or equipment for making or processing doughs20%
C07JSteroids10%
C09KMaterials for miscellaneous applications, not provided for elsewhere10%
LOC1310%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%
Y10TTechnical subjects covered by former us classification10%
PatentTitleYear
9,440,250'Pop-up irrigation device for use with low-pressure irrigation systems'20169,138,768'Pop-up irrigation device for use with low-pressure irrigation systems'20158,567,696'Nozzle body for use with irrigation devices'2013D0608301'Irrigation controller control panel'20106,530,771'Rotary cutter handling system'20035,811,137'Dough Sheeter having independant internally-driven self-powered rollers'19983,998,860'Solidification retardation of liquid crystalline compositions with steroid derivatives of isostearyl carbonate'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976Based in Kettering, OH, US· patent location history
1998–2003Patents assigned to CASA HERRERA INC (2)· patent assignee history
1998–2003Based in Mission Viejo, CA, US· patent location history
2010–2016Patents assigned to RAIN BIRD CORP (4)· patent assignee history
2010–2016Based in Carlsbad, CA, US· patent location history
2013–2016Patents assigned to CLARK DONALD B (3)· patent assignee history
2013–2016Patents assigned to JAHAN ROWSHAN (3)· patent assignee history
2013–2016Patents assigned to WALKER SAMUEL C (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RAIN BIRD CORP42010–2016
CLARK DONALD Bself32013–2016
JAHAN ROWSHAN32013–2016
WALKER SAMUEL C32013–2016
CASA HERRERA INC21998–2003
Locations
LocationPatentsSpan
Carlsbad, California, US42010–2016
Mission Viejo, California, US21998–2003
Kettering, OH, US11976