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Inventor

Chester E. Chomka

Inventor
Bellevue, IA, US

Overview

14→
Patents
1995–2008
Patent span
Chemistry
Primary field (CPC C)

Patents· 14 as inventor

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

C02Fprimary
C02FTreatment of water, waste water, sewage, or sludge38%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests14%
G01FMeasuring volume, volume flow, mass flow or liquid level10%
LOC2310%
B01DSeparation5%
B01LChemical or physical laboratory apparatus for general use5%
B05BSpraying apparatus5%
B67DDispensing, delivering or transferring liquids, not otherwise provided for5%
LOC245%
Y10TTechnical subjects covered by former us classification5%
PatentTitleYear
RE040310'Water purification system and method including dispensed volume sensing and control'20086,585,885'Water purification system and method including dispensed volume sensing and control'20036,432,300'Water purification system and method including dispensed volume sensing and control'20026,379,560'Water purifying apparatus and method for purifying water'20026,328,881'Water purification system and method including dispensed volume sensing and control'2001D0439304'Liquid filter cartridge pack'20016,063,634'Fluid assembly and method for diagnostic instrument'20005,988,435'Fluid dispensing system'19995,868,924'Water purifier'1999D0404829'Housing for a reagent mixing apparatus for use with a diagnostic instrument'19995,862,958'Bottle top dispenser'1999D0399917'Fluid dispenser'19985,399,263'Water purifier'19955,397,468'Water purifier cartridge coupling'1995

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995Patents assigned to BARNSTEAD THERMOLYNE (2)· patent assignee history
1995–2003Based in Bellevue, IA, US· patent location history
1998–2008Based in Dubuque, IA, US· patent location history
1999–2008Patents assigned to BARNSTEAD THERMOLYNE CORP (7)· patent assignee history
1999–2000Patents assigned to ABBOTT LAB (2)· patent assignee history
2002Patents assigned to BARNSTEAD THERMODYNE CORP (1)· patent assignee history
2002Patents assigned to BARNSTEAD THERMOLYN CORP (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BARNSTEAD THERMOLYNE CORP71999–2008
ABBOTT LAB21999–2000
BARNSTEAD THERMOLYNE21995
BARNSTEAD THERMODYNE CORP12002
BARNSTEAD THERMOLYN CORP12002
Locations
LocationPatentsSpan
Bellevue, IA, US101995–2003
Dubuque, IA, US41998–2008