Inventor
Reinhold Kammann
Inventor
Wienhausen, DE
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling40%
B07BSeparating solids from solids by sieving, screening, sifting or by using gas currents20%
B01DSeparation10%
G01BMeasuring length, thickness or similar linear dimensions10%
G01NInvestigating or analysing materials by determining their chemical or physical properties10%
G06KGraphical data reading10%
PatentTitleYear
8,016,037'Drilling rigs with apparatus identification systems and methods'20117,958,715'Chain with identification apparatus'20117,484,625'Shale shakers and screens with identification apparatuses'20097,159,654'Apparatus identification systems and methods'20076,931,748'Riser and tubular inspection systems'20055,442,287'Method and apparatus for detecting magnetic discontinuities by inducing a magnetic field in a magnetizable sample'1995Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1995Patents assigned to TUBOSCOPE VETCO DEUTSCHLAND GM (1)· patent assignee history
1995–2011Based in Wienhausen, DE· patent location history
2005–2009Patents assigned to VARCO INT (3)· patent assignee history
2011Patents assigned to NAT OILWELL VARCO LP (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| VARCO INT | 3 | 2005–2009 |
| NAT OILWELL VARCO LP | 2 | 2011 |
| TUBOSCOPE VETCO DEUTSCHLAND GM | 1 | 1995 |
Locations
| Location | Patents | Span |
|---|---|---|
| Wienhausen, DE | 6 | 1995–2011 |