Coupling arrangement for an agricultural tractor
US-2025241220-A1 · Jul 31, 2025 · US
Length-adjustable links
Length-adjustable links · Cooperative Patent Classification (CPC)
Agriculture, food, personal care, health, and life sciences.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | A01B59/004 |
| Official title | {Length-adjustable links} |
| Display label | Length-adjustable links |
| Total patents | 44 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 3 |
| 2018 | 7 |
| 2019 | 6 |
| 2020 | 4 |
| 2021 | 8 |
| 2022 | 3 |
| 2023 | 3 |
| 2024 | 4 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Upper link for a three-point power lift of an agricultural tractor
US-12262654-B2 · Apr 1, 2025 · US
Methods for controlling articulating tongue arrangements utilized in towing agricultural implements
US-12082515-B2 · Sep 10, 2024 · US
Coupling arrangement for an agricultural tractor
US-2024284816-A1 · Aug 29, 2024 · US
Articulating tongue arrangements for towed agricultural implements
US-12048259-B2 · Jul 30, 2024 · US
Connector link of three-point linkage
US-2024196773-A1 · Jun 20, 2024 · US
Working machine coupler device and working machine coupling method
US-11839170-B2 · Dec 12, 2023 · US
Method for orienting an implement attached to a three-point hitch
US-11716919-B2 · Aug 8, 2023 · US
Three-point hitch for an agricultural tractor
US-11678595-B2 · Jun 20, 2023 · US
Upper link for a three-point power lift of an agricultural tractor
US-2022330467-A1 · Oct 20, 2022 · US
Articulating tongue arrangements for towed agricultural implements
US-2022287215-A1 · Sep 15, 2022 · US
Methods for controlling articulating tongue arrangements utilized in towing agricultural implements
US-2022287240-A1 · Sep 15, 2022 · US
Folding hitch
US-11109522-B2 · Sep 7, 2021 · US
Method for determining a physical parameter of an upper link
US-11035668-B2 · Jun 15, 2021 · US
Three-point hitch for an agricultural tractor
US-2021127542-A1 · May 6, 2021 · US
Working machine coupler device and working machine coupling method
US-2021105926-A1 · Apr 15, 2021 · US
Towing hitch
US-10940727-B2 · Mar 9, 2021 · US
Apparatus, Systems And Methods For Steerable Toolbars
US-2021051837-A1 · Feb 25, 2021 · US
Enhanced resolution fore/aft leveling of a towable tillage implement
US-10912244-B2 · Feb 9, 2021 · US
Lift link assembly of a three-point hitch
US-10897842-B2 · Jan 26, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC A01B59/004?
- CPC A01B59/004 is the Cooperative Patent Classification code for “Length-adjustable links.”
- How many patents are filed under CPC A01B59/004 (Length-adjustable links)?
- Our database includes 44 publications tagged with this CPC code.
- Is patent activity under CPC A01B59/004 growing?
- Publication counts under this code: 4 in 2024 vs 2 in 2025 (latest complete years).