Retractable spike tooth harrow for large field cultivator
US-12543618-B2 · Feb 10, 2026 · US
with two or more tool-frames
with two or more tool-frames · 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 | A01B19/04 |
| Official title | with two or more tool-frames |
| Display label | with two or more tool-frames |
| Total patents | 26 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2017 | 2 |
| 2018 | 7 |
| 2019 | 8 |
| 2021 | 2 |
| 2023 | 1 |
| 2024 | 4 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Work machine control systems to monitor ground engagement tools and map obstacles
US-12201049-B2 · Jan 21, 2025 · US
Work machine control systems to monitor ground engagement tools and map obstacles
US-12114587-B2 · Oct 15, 2024 · US
Work machine control systems to monitor ground engagement tools and map obstacles
US-2024224835-A9 · Jul 11, 2024 · US
Retractable spike tooth harrow for large field cultivator
US-2024196777-A1 · Jun 20, 2024 · US
Work machine control systems to monitor ground engagement tools and map obstacles
US-2024130267-A1 · Apr 25, 2024 · US
Work machine control systems to monitor ground engagement tools and map obstacles
US-11805721-B2 · Nov 7, 2023 · US
Work machine control systems to monitor ground engagement tools and map obstacles
US-2021134090-A1 · May 6, 2021 · US
Work machine control systems to monitor ground engagement tools and map obstacles
US-2021132573-A1 · May 6, 2021 · US
Electronic control system for adjusting smoothing tools of a harrow
US-10448554-B2 · Oct 22, 2019 · US
System for equalizing pressure on smoothing tools of a harrow
US-10368471-B2 · Aug 6, 2019 · US
System for adjusting smoothing tools of a harrow using a linear actuator
US-10342171-B2 · Jul 9, 2019 · US
Harrow downforce adjustment
US-10327373-B2 · Jun 25, 2019 · US
Biasing system for harrows
US-10299421-B2 · May 28, 2019 · US
Electronic sensor assembly for monitoring smoothing tools of a harrow
US-10251328-B2 · Apr 9, 2019 · US
System for adjusting smoothing tools of a harrow according to location
US-10194574-B2 · Feb 5, 2019 · US
Anti-tangle harrow attachment
US-10194573-B2 · Feb 5, 2019 · US
Biasing system for harrows
US-2018139883-A1 · May 24, 2018 · US
Electronic Sensor Assembly For Monitoring Smoothing Tools Of A Harrow
US-2018139891-A1 · May 24, 2018 · US
System For Adjusting Smoothing Tools Of A Harrow According To Location
US-2018139892-A1 · May 24, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC A01B19/04?
- CPC A01B19/04 is the Cooperative Patent Classification code for “with two or more tool-frames.”
- How many patents are filed under CPC A01B19/04 (with two or more tool-frames)?
- Our database includes 26 publications tagged with this CPC code.
- Is patent activity under CPC A01B19/04 growing?
- Publication counts under this code: 4 in 2024 vs 1 in 2025 (latest complete years).