- All sections
- C - Chemistrymetallurgy
- C10L - Fuels not otherwise provided fornatural gassynthetic natural gas obtained by processes not covered by subclasses or liquefied petroleum gas use of additives to fuels or fires fire-lighters
- C10L 1/19 - Esters
Patent holdings for IPC class C10L 1/19
Total number of patents in this class: 436
10-year publication summary
|
21
|
35
|
33
|
28
|
21
|
22
|
16
|
13
|
18
|
10
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Innospec Limited | 343 |
31 |
| Shell Internationale Research Maatschappij B.V. | 3553 |
19 |
| Shell USA, Inc. | 1238 |
17 |
| BASF SE | 20991 |
14 |
| The Lubrizol Corporation | 1291 |
13 |
| Trent University | 71 |
13 |
| Total Marketing Services | 453 |
9 |
| Shell Oil Company | 2138 |
8 |
| ExxonMobil Research And Engineering Company | 2562 |
7 |
| Chevron U.S.A. Inc. | 3992 |
7 |
| Castrol Limited | 519 |
7 |
| Totalenergies Onetech | 1367 |
7 |
| Arkema France | 4168 |
6 |
| China Petroleum & Chemical Corporation | 1909 |
6 |
| Wilmar Trading Pte. Ltd. | 119 |
6 |
| Afton Chemical Corporation | 486 |
5 |
| Genomatica, Inc. | 496 |
4 |
| Petroleo Brasileiro S.A. - Petrobras | 862 |
4 |
| National Institute of Advanced Industrial Science and Technology | 3793 |
3 |
| BL Technologies, Inc. | 836 |
3 |
| Other owners | 247 |