Inventor
Lai-Duien G. Fan
Inventor
Lake Zurich, IL, US
Overview
Patents· 8 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 sludge28%
C23FNon-mechanical removal of metallic material from surface28%
C09KMaterials for miscellaneous applications, not provided for elsewhere17%
A01NPreservation of bodies of humans or animals or plants or parts thereof6%
C05FOrganic fertilisers not covered by subclasses c05b, c05c, e.g. fertilisers from waste or refuse6%
C05GMixtures of fertilisers covered individually by different subclasses of class c056%
C07CAcyclic or carbocyclic compounds6%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds6%
PatentTitleYear
6,620,338'Composition for inhibition of metal corrosion'20036,447,717'Composition and method for inhibition of metal corrosion'20026,277,302'Inhibition of metal corrosion'20015,814,582'Method for enhanced plant productivity'19985,344,590'Method for inhibiting corrosion of metals using polytartaric acids'19945,183,574'Method of dispersing iron'19935,139,702'Naphthylamine polycarboxylic acids'19925,124,047'Method of inhibiting scale deposits'1992Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1992–1994Patents assigned to GRACE W R & CO (4)· patent assignee history
1992–2003Based in Lake Zurich, IL, US· patent location history
1992Based in Palatine, IL, US· patent location history
1998–2003Patents assigned to DONLAR CORP (4)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DONLAR CORP | 4 | 1998–2003 |
| GRACE W R & CO | 4 | 1992–1994 |
Locations
| Location | Patents | Span |
|---|---|---|
| Lake Zurich, Illinois, US | 7 | 1992–2003 |
| Palatine, Illinois, US | 1 | 1992 |