- All sections
- C - Chemistry; metallurgy
- C10N - Indexing scheme associated with subclass
- C10N 20/02 - Viscosity; Viscosity index
Patent holdings for IPC class C10N 20/02
Total number of patents in this class: 1266
10-year publication summary
|
54
|
61
|
57
|
75
|
114
|
104
|
88
|
74
|
42
|
15
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Idemitsu Kosan Co., Ltd. | 3995 |
284 |
| JX Nippon Oil & Energy Corporation | 1019 |
101 |
| ExxonMobil Research And Engineering Company | 2830 |
55 |
| Shell Internationale Research Maatschappij B.V. | 3792 |
39 |
| Kyodo Yushi Co., Ltd. | 224 |
38 |
| The Lubrizol Corporation | 1335 |
37 |
| JXTG Nippon Oil & Energy Corporation | 325 |
37 |
| NTN Corporation | 5008 |
32 |
| Mitsui Chemicals, Inc. | 3134 |
23 |
| ENEOS Corporation | 611 |
23 |
| Nippon Oil Corporation | 340 |
20 |
| Chevron U.S.A. Inc. | 3774 |
17 |
| Shell Oil Company | 2196 |
16 |
| Saudi Arabian Oil Company | 11322 |
16 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 13301 |
16 |
| Dow Global Technologies LLC | 10147 |
14 |
| NSK Ltd. | 2719 |
13 |
| NOK Kluber Co., Ltd. | 54 |
13 |
| BASF SE | 19740 |
12 |
| ExxonMobil Chemical Patents Inc. | 4286 |
12 |
| Other owners | 448 |