Elastic bushing device of traction device and railcar bogie
US-2020385032-A1 · Dec 10, 2020 · US
This page is not indexed by search engines while we improve data quality.
King-bolts
King-bolts · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B61F5/18 |
| Official title | King-bolts |
| Display label | King-bolts |
| Total patents | 5 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity appears to be growing based on the most recent years.
| Year | Patents |
|---|---|
| 2017 | 2 |
| 2019 | 1 |
| 2020 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Carbody of railcar
US-10597048-B2 · Mar 24, 2020 · US
Railway truck bolster wear liner
US-10189487-B2 · Jan 29, 2019 · US
Carbody of railcar
US-2017320503-A1 · Nov 9, 2017 · US
Railway truck bolster wear liner
US-2017166223-A1 · Jun 15, 2017 · US