IPC codes for EV-related technology domains and subdomains
| Domain* | Subdomain | IPC codes | No. of patents (petty patent) |
|---|---|---|---|
| Power electronics | B60L; B60K6; B20W20 | 455 (14) | |
| Power electronics | B60K 6/00; B60K 6/42; B60K 6/44; B60K 6/442; B60K 6/445; B60K 6/448; B60K 6/46; B60K 6/48; B60K 6/485; B62M23/02; B60W 10/00; B60W 20/00 | 188 (2) | |
| Other EV power electronics | B60L 15/00; B60L 50/00; B60L 50/10; B60L 50/40; B60L 50/50; B60L 58/00; | 8 | |
| Charging | H02J | 483 (78) | |
| EV charging and discharging | H02J 7/00; H02J 7/02; H02J 7/14; H02J 7/34; H02J 53/00; B60L 11/18; B60L 53/00; B60L 53/10; H01M 10/44; H01M 10/46; H01M 10/48; | 351 (53) | |
| EV battery | H01M | 960 (64) | |
| Lead-acid battery | H01M 2/28; H01M 4/14; H01M 4/68; H01M 10/06; H01M 4/73; H01M 4/82 | 82 (4) | |
| Nickel battery | H01M 4/32; H01M 10/42 | 28 (1) | |
| Lithium-ion | H01M 10/052; H01M 10/0525 | 3 | |
| Other EV battery | H01M 4/00; H01M 4/02; H01M 50/00; H01M 10/00; H01M 10/56; | 81 (12) | |
| Electric motor | H02K | 952 (68) | |
| Induction motor | H02K 44/06; H02K 17/00; H02K 17/02; H02K 17/04; H02K 17/12; H02K 17/16; H02K 17/22; H02K 17/26; H02K 17/28; H02K 17/30; H02K 17/32; H02K 17/34; | 17 (1) | |
| Permanent magnet motor | H02K 1/17, H02K 1/27 | 111 | |
| Other motor | H02K 1/00; H02K 5/00; H02K 7/00; H02K 11/00; H02K 21/00; H02K 29/00; F16H 59/00 | 153 (14) |
| Domain* | Subdomain | IPC codes | No. of patents (petty patent) |
|---|---|---|---|
| Power electronics | |||
| Power electronics | B60K 6/00; B60K 6/42; B60K 6/44; B60K 6/442; B60K 6/445; B60K 6/448; B60K 6/46; B60K 6/48; B60K 6/485; B62M23/02; B60W 10/00; B60W 20/00 | 188 (2) | |
| Other EV power electronics | B60L 15/00; B60L 50/00; B60L 50/10; B60L 50/40; B60L 50/50; B60L 58/00; | 8 | |
| Charging | |||
| EV charging and discharging | H02J 7/00; H02J 7/02; H02J 7/14; H02J 7/34; H02J 53/00; B60L 11/18; B60L 53/00; B60L 53/10; H01M 10/44; H01M 10/46; H01M 10/48; | 351 (53) | |
| EV battery | |||
| Lead-acid battery | H01M 2/28; H01M 4/14; H01M 4/68; H01M 10/06; H01M 4/73; H01M 4/82 | 82 (4) | |
| Nickel battery | H01M 4/32; H01M 10/42 | 28 (1) | |
| Lithium-ion | H01M 10/052; H01M 10/0525 | 3 | |
| Other EV battery | H01M 4/00; H01M 4/02; H01M 50/00; H01M 10/00; H01M 10/56; | 81 (12) | |
| Electric motor | |||
| Induction motor | H02K 44/06; H02K 17/00; H02K 17/02; H02K 17/04; H02K 17/12; H02K 17/16; H02K 17/22; H02K 17/26; H02K 17/28; H02K 17/30; H02K 17/32; H02K 17/34; | 17 (1) | |
| Permanent magnet motor | H02K 1/17, H02K 1/27 | 111 | |
| Other motor | H02K 1/00; H02K 5/00; H02K 7/00; H02K 11/00; H02K 21/00; H02K 29/00; F16H 59/00 | 153 (14) |
Notes:
Categorization of domains and subdomains are adapted from Feng and Magee (2020) and Schmitt et al. (2016)
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