- All sections
- E - Fixed constructions
- E21B - Earth or rock drillingobtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B 37/06 - Methods or apparatus for cleaning boreholes or wells using chemical means for preventing or limiting the deposition of paraffins or like substances
Patent holdings for IPC class E21B 37/06
Total number of patents in this class: 938
10-year publication summary
|
118
|
115
|
84
|
79
|
74
|
86
|
59
|
66
|
48
|
46
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20908 |
132 |
| Saudi Arabian Oil Company | 13206 |
84 |
| Schlumberger Technology Corporation | 10745 |
28 |
| Baker Hughes Holdings LLC | 3005 |
23 |
| Cameron International Corporation | 1335 |
22 |
| Baker Hughes Oilfield Operations, LLC | 2313 |
22 |
| Schlumberger Canada Limited | 7298 |
20 |
| Petroleo Brasileiro S.A. - Petrobras | 851 |
18 |
| Championx USA Inc. | 183 |
18 |
| Ecolab USA Inc. | 5499 |
17 |
| Baker Hughes Incorporated | 5238 |
16 |
| M-I L.L.C. | 808 |
15 |
| Dorf Ketal Chemicals FZE | 197 |
14 |
| Baker Hughes, a GE Company, LLC | 2112 |
13 |
| Aramco Services Company | 3981 |
12 |
| ConocoPhillips Company | 1671 |
12 |
| Services Petroliers Schlumberger | 5788 |
10 |
| Locus Solutions IPCo, LLC | 321 |
10 |
| OneSubsea IP UK Limited | 422 |
9 |
| Championx LLC | 505 |
9 |
| Other owners | 434 |