Estimation apparatus and crane
US-12492104-B2 · Dec 9, 2025 · US
for maintaining predetermined rope, cable, or chain tension, e.g. in ropes or cables for towing craft, in chains for anchors; Warping or mooring winch-cable tension control
for maintaining predetermined rope, cable, or chain tension, e.g. in ropes or cables for towing craft, in chains for anchors; Warping or mooring winch-cable tension control · 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 | B66D1/50 |
| Official title | for maintaining predetermined rope, cable, or chain tension, e.g. in ropes or cables for towing craft, in chains for anchors; Warping or mooring winch-cable tension control |
| Display label | for maintaining predetermined rope, cable, or chain tension, e.g. in ropes or cables for towing craft, in chains for anchors; Warping or mooring winch-cable tension control |
| Total patents | 48 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 3 |
| 2017 | 1 |
| 2018 | 6 |
| 2019 | 9 |
| 2020 | 8 |
| 2021 | 3 |
| 2022 | 6 |
| 2023 | 7 |
| 2024 | 1 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Vertiport system including transfer apparatus using cable
US-2025197024-A1 · Jun 19, 2025 · US
Gripping device
US-2024034558-A1 · Feb 1, 2024 · US
Estimation apparatus and crane
US-2023406678-A1 · Dec 21, 2023 · US
Lifting device
US-11802030-B2 · Oct 31, 2023 · US
Winch with line guide driven by wound line
US-2023166952-A1 · Jun 1, 2023 · US
Winch with spool and remote tensioning wheel
US-2023166949-A1 · Jun 1, 2023 · US
Hoisting device with multiple line types on driveshaft
US-2023166950-A1 · Jun 1, 2023 · US
Fender davit device
US-11649020-B2 · May 16, 2023 · US
Universal level wind system for winch assembly
US-11577944-B2 · Feb 14, 2023 · US
Method for assisting in maintaining a metal cable of a lifting or transport apparatus
US-2022289534-A1 · Sep 15, 2022 · US
Winch line tension measurement system
US-11434114-B1 · Sep 6, 2022 · US
System for controlling the operation of a hydraulic winch
US-11339038-B2 · May 24, 2022 · US
Conveying device
US-11286136-B2 · Mar 29, 2022 · US
Lifting device
US-2022033236-A1 · Feb 3, 2022 · US
Work machine and method for operating the work machine
US-11235958-B2 · Feb 1, 2022 · US
Universal Level Wind System for Winch Assembly
US-2021403296-A1 · Dec 30, 2021 · US
Fibre Rope and Hoisting System Including Such a Fibre Rope
US-2021277598-A1 · Sep 9, 2021 · US
Wave-induced motion compensating crane for use on an offshore vessel, vessel and load transferring method
US-10941023-B2 · Mar 9, 2021 · US
Wire back tension device
US-10875747-B2 · Dec 29, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B66D1/50?
- CPC B66D1/50 is the Cooperative Patent Classification code for “for maintaining predetermined rope, cable, or chain tension, e.g. in ropes or cables for towing craft, in chains for anchors; Warping or mooring winch-cable tension control.”
- How many patents are filed under CPC B66D1/50 (for maintaining predetermined rope, cable, or chain tension, e.g. in ropes or cables for towing craft, in chains for anchors; Warping or mooring winch-cable tension control)?
- Our database includes 48 publications tagged with this CPC code.
- Is patent activity under CPC B66D1/50 growing?
- Publication counts under this code: 1 in 2024 vs 2 in 2025 (latest complete years).