Switch control method for rail transit signal system, and apparatus for method
US-12570337-B2 · Mar 10, 2026 · US
Pan Liang is listed as an inventor on 20 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Pan Liang |
| Total patents | 20 |
| First publication | Jun 11, 2015 |
| Latest publication | Mar 10, 2026 |
Publications ranked by popularity score, then publication date.
US-12570337-B2 · Mar 10, 2026 · US
US-12570340-B2 · Mar 10, 2026 · US
US-D1090475-S · Aug 26, 2025 · US
US-2025206361-A1 · Jun 26, 2025 · US
US-12263873-B2 · Apr 1, 2025 · US
US-12246763-B2 · Mar 11, 2025 · US
US-2025042454-A1 · Feb 6, 2025 · US
US-2024416979-A1 · Dec 19, 2024 · US
US-D1042383-S · Sep 17, 2024 · US
US-D1040775-S · Sep 3, 2024 · US
Latest publications not already listed above.
US-2024239390-A1 · Jul 18, 2024 · US
US-2023415797-A1 · Dec 28, 2023 · US
US-2023322282-A1 · Oct 12, 2023 · US
US-2023278610-A1 · Sep 7, 2023 · US
US-2023257013-A1 · Aug 17, 2023 · US
US-2023242167-A1 · Aug 3, 2023 · US
US-2019205303-A1 · Jul 4, 2019 · US
US-D828819-S · Sep 18, 2018 · US
US-9593185-B2 · Mar 14, 2017 · US
US-2015158961-A1 · Jun 11, 2015 · US
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Casco Signal Ltd | 12 |
| Honor Device Co Ltd | 3 |
| Sinopec Catalyst Co Ltd | 2 |
| Casco Signal Ltd | 1 |
| China Petroleum & Chem Corp | 1 |
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| B61L27/20 | 10 |
| B61L27/00 | 8 |
| B61L2027/204 | 8 |
| B61L27/30 | 7 |
| B61L2027/202 | 5 |