Inventor
Rolf A. Sieglen
Inventor
Sulzbach, DE
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Nprimary
G01NInvestigating or analysing materials by determining their chemical or physical properties56%
B07BSeparating solids from solids by sieving, screening, sifting or by using gas currents11%
B07CPostal sorting11%
E21CMining or quarrying11%
Y10TTechnical subjects covered by former us classification11%
PatentTitleYear
4,930,359'Apparatus for preparing samples from a flow of bulk material'19904,558,752'Device for obtaining dust from minerals'19854,502,951'Suction device for obtaining dust samples'19854,482,864'Process and equipment for collecting magnetite-containing ore dust samples and determining the magnetite and phosphorous contents thereof'19844,441,616'Process for sorting coarse to fine materials according to their chemical composition'1984Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1984–1985Patents assigned to LUOSSAVAARA KIIRUNAVAARA AB (3)· patent assignee history
1984Patents assigned to IBM (1)· patent assignee history
1984–1985Based in Sulzbach, DE· patent location history
1990Patents assigned to KOENIG REINER (1)· patent assignee history
1990Patents assigned to RHEINISCHE BRAUNKOHLENW AG (1)· patent assignee history
1990Patents assigned to SIEGLEN ROLF A (1)· patent assignee history
1990Based in Taunus, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| LUOSSAVAARA KIIRUNAVAARA AB | 3 | 1984–1985 |
| IBM | 1 | 1984 |
| KOENIG REINER | 1 | 1990 |
| RHEINISCHE BRAUNKOHLENW AG | 1 | 1990 |
| SIEGLEN ROLF Aself | 1 | 1990 |
Locations
| Location | Patents | Span |
|---|---|---|
| Sulzbach, DE | 4 | 1984–1985 |
| Taunus, DE | 1 | 1990 |