Inventor
Joseph F. Louvar
Inventor
Lincoln Park, MI, US
Overview
Patents· 7 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 sludge30%
B01DSeparation20%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds20%
C07DHeterocyclic compounds10%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds10%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%
PatentTitleYear
5,223,570'Method for the preparation of graft polymer dispersions having broad particle size distribution without wildly fluctuating viscosities'19934,824,561'Wastewater treatment'19894,772,732'Method for purification of butylene oxide'19884,746,443'Bentazon containing wastewater treatment'19884,725,363'Bentazon containing wastewater treatment'19884,137,396'Filtration process for purifying polyols'19794,000,065'Method and apparatus for purifying aqueous streams contaminated with organic materials'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1979Patents assigned to BASF WYANDOTTE CORP (2)· patent assignee history
1976–1993Based in Lincoln Park, MI, US· patent location history
1988–1993Patents assigned to BASF CORP (4)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BASF CORP | 4 | 1988–1993 |
| BASF WYANDOTTE CORP | 2 | 1976–1979 |
Locations
| Location | Patents | Span |
|---|---|---|
| Lincoln Park, MI, US | 7 | 1976–1993 |