Inventor
Ronald Barthel
Inventor
Weissenborn-Berthelsdorf, DE
Overview
Patents· 2 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A01Dprimary
A01DHarvesting25%
E21BEarth or rock drilling25%
F04FPumping of fluid by direct contact of another fluid or by using inertia of fluid to be pumped25%
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.
1979Patents assigned to SHELL OIL CO (1)· patent assignee history
1979Based in Rijswijk, NL· patent location history
1993Patents assigned to FORTSCHRITT ERNTEMASCHINEN (1)· patent assignee history
1993Based in Weissenborn-Berthelsdorf, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FORTSCHRITT ERNTEMASCHINEN | 1 | 1993 |
| SHELL OIL CO | 1 | 1979 |
Locations
| Location | Patents | Span |
|---|---|---|
| Weissenborn-Berthelsdorf, DE | 1 | 1993 |
| Rijswijk, NL | 1 | 1979 |