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Inventor

Rodger Spears

Inventor
Bloomington, MN, US

Overview

8→
Patents
2006–2020
Patent span
Performing operations
Primary field (CPC B)

Patents· 8 as inventor

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

B01Dprimary
B01DSeparation29%
B29DProducing particular articles from plastics or from substances in a plastic state29%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution29%
B04BCentrifuges10%
C02FTreatment of water, waste water, sewage, or sludge5%
PatentTitleYear
RE048050Z-filter media pack arrangement; and, methods2020RE046700'Z-filter media pack arrangement; and, methods'20189,114,346'Z-filter media pack arrangement; and, methods'20158,518,141'Z-filter media pack arrangement; and, methods'20138,241,383'Z-filter media pack arrangement; and, methods'20127,967,886'Z-filter media pack arrangement; and, methods'20117,901,343'Methods and apparatus for centrifuging dry solids'20117,077,799'Apparatus and method for a high-efficiency self-cleaning centrifuge having concentrate cylinders'2006

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2006–2011Patents assigned to ADVANCED PRODUCTS LAB INC (2)· patent assignee history
2006–2015Based in Bloomington, MN, US· patent location history
2011–2020Patents assigned to DONALDSON CO INC (6)· patent assignee history
2012–2013Patents assigned to KLADNITSKY VLADIMIR (2)· patent assignee history
2012–2013Patents assigned to LENSING EUGENE (2)· patent assignee history
2013Patents assigned to BISHOP WAYNE (1)· patent assignee history
2018–2020Based in Bigfork, MN, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DONALDSON CO INC62011–2020
ADVANCED PRODUCTS LAB INC22006–2011
KLADNITSKY VLADIMIR22012–2013
LENSING EUGENE22012–2013
BISHOP WAYNE12013
Locations
LocationPatentsSpan
Bloomington, Minnesota, US62006–2015
Bigfork, Minnesota, US22018–2020