Method and system for correcting vertical position defects of a track
US-2024271371-A1 · Aug 15, 2024 · US
for levelling · Cooperative Patent Classification (CPC)
Building, mining, and civil engineering structures.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | E01B35/08 |
| Official title | for levelling |
| Display label | for levelling |
| Total patents | 13 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 4 |
| 2021 | 1 |
| 2023 | 4 |
| 2024 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2024271371-A1 · Aug 15, 2024 · US
US-11821147-B2 · Nov 21, 2023 · US
US-11802380-B2 · Oct 31, 2023 · US
US-11613852-B2 · Mar 28, 2023 · US
US-11566383-B2 · Jan 31, 2023 · US
US-11174598-B2 · Nov 16, 2021 · US
US-2020354899-A1 · Nov 12, 2020 · US
US-2020181850-A1 · Jun 11, 2020 · US
US-10619313-B2 · Apr 14, 2020 · US
US-10556605-B2 · Feb 11, 2020 · US
US-2019316300-A1 · Oct 17, 2019 · US
US-2019257038-A1 · Aug 22, 2019 · US
US-2018154914-A1 · Jun 7, 2018 · US