Inventor
Charles T. Nachtman
Inventor
Dubuque, IA, US
Overview
Patents· 9 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 sludge29%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests24%
B01DSeparation12%
F01MLubricating of machines or engines in general12%
B67DDispensing, delivering or transferring liquids, not otherwise provided for6%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof6%
F16LPipes6%
Y02TClimate change mitigation technologies related to transportation6%
PatentTitleYear
6,579,445'System for the production of laboratory grade ultrapure water'20036,520,545'Fluid connection adapter assembly'20036,383,382'Dual cartridge media housing'20026,186,128'Apparatus for treatment of crankcase emissions materials in a positive crankcase ventilation system'20016,000,383'Apparatus for the treatment of crankcase emissions materials in a positive crankcase ventilation system'19995,988,435'Fluid dispensing system'19995,868,924'Water purifier'19995,399,263'Water purifier'19955,397,468'Water purifier cartridge coupling'1995Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1995Patents assigned to BARNSTEAD THERMOLYNE (2)· patent assignee history
1995–2003Based in Dubuque, IA, US· patent location history
1999Patents assigned to BARNSTEAD THERMOLYNE CORP (2)· patent assignee history
1999–2001Patents assigned to GEKKO INT L C (2)· patent assignee history
2002–2003Patents assigned to SARTORIUS GMBH (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SARTORIUS GMBH | 3 | 2002–2003 |
| BARNSTEAD THERMOLYNE | 2 | 1995 |
| BARNSTEAD THERMOLYNE CORP | 2 | 1999 |
| GEKKO INT L C | 2 | 1999–2001 |
Locations
| Location | Patents | Span |
|---|---|---|
| Dubuque, IA, US | 9 | 1995–2003 |