Inventor
Allan L. Liebrenz
Inventor
Excelsior, MN, US
Overview
Patents· 2 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Dprimary
B01DSeparation25%
B03CMagnetic or electrostatic separation of solid materials from solid materials or fluids25%
G11BInformation storage based on relative movement between record carrier and transducer25%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests25%
Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1999–2000Patents assigned to DONALDSON CO INC (2)· patent assignee history
1999–2000Based in Excelsior, MN, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DONALDSON CO INC | 2 | 1999–2000 |
Locations
| Location | Patents | Span |
|---|---|---|
| Excelsior, Minnesota, US | 2 | 1999–2000 |