Transportation system
US-11772914-B2 · Oct 3, 2023 · US
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Tunnels submerged into, or built in, open water (construction or placing of caissons in general E02D23/00; joining caissons to each other under water, in general E02D25/00)
Tunnels submerged into, or built in, open water (construction or placing of caissons in general E02D23/00; joining caissons to each other under water, in general E02D25/00) · Cooperative Patent Classification (CPC)
Building, mining, and civil engineering structures.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | E02D29/063 |
| Official title | Tunnels submerged into, or built in, open water (construction or placing of caissons in general E02D23/00; joining caissons to each other under water, in general E02D25/00) |
| Display label | Tunnels submerged into, or built in, open water (construction or placing of caissons in general E02D23/00; joining caissons to each other under water, in general E02D25/00) |
| Total patents | 20 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 9 |
| 2017 | 4 |
| 2018 | 2 |
| 2019 | 2 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Transportation system
US-2022106136-A1 · Apr 7, 2022 · US
Transportation system
US-2021253379-A1 · Aug 19, 2021 · US
Transportation system
US-2019300301-A1 · Oct 3, 2019 · US
Transportation system
US-10370204-B2 · Aug 6, 2019 · US
Transportation system
US-10093493-B2 · Oct 9, 2018 · US
Low-pressure environment structures
US-10046776-B2 · Aug 14, 2018 · US
Transportation system
US-9718630-B2 · Aug 1, 2017 · US
Low-pressure environment structures
US-2017106879-A1 · Apr 20, 2017 · US
Transportation system
US-9604798-B2 · Mar 28, 2017 · US
Low-pressure environment structures
US-9566987-B2 · Feb 14, 2017 · US
Transportation system
US-9517901-B2 · Dec 13, 2016 · US
Transportation system
US-9511959-B2 · Dec 6, 2016 · US
Transportation system
US-2016229418-A1 · Aug 11, 2016 · US
Transportation system
US-2016229419-A1 · Aug 11, 2016 · US
Transportation system
US-2016229416-A1 · Aug 11, 2016 · US
Transportation system
US-2016229417-A1 · Aug 11, 2016 · US
Low-pressure environment structures
US-2016229420-A1 · Aug 11, 2016 · US
Transportation system
US-2016230350-A1 · Aug 11, 2016 · US
Transportation system
US-2016229646-A1 · Aug 11, 2016 · US