- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F01C - Rotary-piston or oscillating-piston machines or engines
- F01C 20/18 - Control of, monitoring of, or safety arrangements for, machines or engines characterised by varying the volume of the working chamber
Patent holdings for IPC class F01C 20/18
Total number of patents in this class: 38
10-year publication summary
|
6
|
10
|
1
|
2
|
2
|
2
|
1
|
1
|
0
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Astemo, Ltd. | 5618 |
7 |
| Daikin Industries, Ltd. | 9495 |
4 |
| Stackpole International Engineered Products, Ltd. | 46 |
3 |
| Pratt & Whitney Canada Corp. | 4215 |
2 |
| Purdue Research Foundation | 3277 |
2 |
| Schwabische Huttenwerke Automotive GmbH | 68 |
2 |
| Hanon Systems EFP Canada Ltd. | 65 |
2 |
| LG Electronics Inc. | 69257 |
1 |
| Robert Bosch GmbH | 40953 |
1 |
| Hamilton Sundstrand Corporation | 4525 |
1 |
| Compagnie générale des établissements Michelin SCA | 2477 |
1 |
| Customachinery Inc. | 4 |
1 |
| Jiangsu University | 950 |
1 |
| Joma-Polytec Kunststofftechnik GmbH | 18 |
1 |
| KYB Corporation | 1278 |
1 |
| MAHLE International GmbH | 2670 |
1 |
| MIBA Sinter Holding GmbH & Co KG | 2 |
1 |
| Torad Engineering, LLC | 15 |
1 |
| Woodward, Inc. | 602 |
1 |
| Shanghai Highly Electrical Appliances Co., Ltd. | 18 |
1 |
| Other owners | 3 |