- All sections
- C - Chemistry; metallurgy
- C10L - Fuels not otherwise provided for; natural gas; synthetic 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: 431
10-year publication summary
41
|
22
|
35
|
41
|
31
|
23
|
25
|
18
|
15
|
8
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Innospec Limited | 308 |
33 |
Shell Internationale Research Maatschappij B.V. | 3792 |
22 |
BASF SE | 19740 |
18 |
Shell USA, Inc. | 1074 |
14 |
The Lubrizol Corporation | 1335 |
13 |
Trent University | 70 |
13 |
Total Marketing Services | 487 |
10 |
Shell Oil Company | 2196 |
9 |
ExxonMobil Research And Engineering Company | 2830 |
7 |
Chevron U.S.A. Inc. | 3774 |
7 |
Castrol Limited | 520 |
7 |
Arkema France | 3790 |
6 |
Wilmar Trading Pte. Ltd. | 133 |
6 |
China Petroleum & Chemical Corporation | 1623 |
5 |
Genomatica, Inc. | 514 |
5 |
Afton Chemical Corporation | 468 |
4 |
Petroleo Brasileiro S.A. - Petrobras | 730 |
4 |
National Institute of Advanced Industrial Science and Technology | 3677 |
3 |
Clariant International Ltd. | 978 |
3 |
ENI S.p.A. | 1241 |
3 |
Other owners | 239 |