Inventor
Leon Ellison
Inventor
Huffman, TX, US
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling56%
B07BSeparating solids from solids by sieving, screening, sifting or by using gas currents22%
B01DSeparation11%
G06KGraphical data reading11%
PatentTitleYear
9,784,041'Drilling rig riser identification apparatus'20178,016,037'Drilling rigs with apparatus identification systems and methods'20117,958,715'Chain with identification apparatus'20117,946,356'Systems and methods for monitored drilling'20117,484,625'Shale shakers and screens with identification apparatuses'2009Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2009–2017Based in Huffman, TX, US· patent location history
2011–2017Patents assigned to NAT OILWELL VARCO LP (4)· patent assignee history
2017Patents assigned to ELLISON LEON (1)· patent assignee history
2017Patents assigned to KAMMANN RHEINHOLD (1)· patent assignee history
2017Patents assigned to KINERT NATHAN (1)· patent assignee history
2017Patents assigned to LAM CLIVE (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NAT OILWELL VARCO LP | 4 | 2011–2017 |
| ELLISON LEONself | 1 | 2017 |
| KAMMANN RHEINHOLD | 1 | 2017 |
| KINERT NATHAN | 1 | 2017 |
| LAM CLIVE | 1 | 2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Huffman, Texas, US | 5 | 2009–2017 |