- All sections
- E - Fixed constructions
- E21B - Earth or rock drilling; obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B 19/14 - Racks, ramps, troughs or bins, for holding the lengths of rod singly or connected; Handling between storage place and borehole
Patent holdings for IPC class E21B 19/14
Total number of patents in this class: 706
10-year publication summary
|
45
|
67
|
76
|
77
|
66
|
66
|
38
|
63
|
21
|
8
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Itrec B.V. | 477 |
53 |
| National Oilwell Varco, L.P. | 1604 |
47 |
| Nabors Drilling Technologies USA, Inc. | 533 |
30 |
| Schlumberger Technology Corporation | 9690 |
27 |
| Sichuan Honghua Petroleum Equipment Co. Ltd. | 71 |
18 |
| Forum US, Inc. | 315 |
16 |
| Nabors Industries, Inc. | 38 |
15 |
| Epiroc Rock Drills Aktiebolag | 405 |
15 |
| Mhwirth AS | 113 |
14 |
| Salunda Limited | 55 |
13 |
| Schlumberger Canada Limited | 6913 |
12 |
| Caterpillar Global Mining Equipment LLC | 115 |
10 |
| Sandvik Mining and Construction Oy | 703 |
9 |
| Canrig Robotic Technologies AS | 47 |
9 |
| National Oilwell Varco Norway AS | 109 |
8 |
| Trinity Bay Equipment Holdings, LLC | 244 |
8 |
| Cameron International Corporation | 1305 |
7 |
| Ensco International Incorporated | 57 |
7 |
| Grant Prideco, Inc. | 384 |
7 |
| Vermeer Manufacturing Company | 615 |
7 |
| Other owners | 374 |