B60R 21/131
Protective devices for drivers in case of overturning of tractors
Official title: {Protective devices for drivers in case of overturning of tractors (means for preventing overturning or tipping of tractors B62D49/08)}
B60R21/131 (Protective devices for drivers in case of overturning of tractors) appears on 175 US grants and 122 published applications in this corpus.
Search patents in B60R- Granted patents
- 175
- Published applications
- 122
- Assignees
- 66
- Inventors
- 372
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 6 | 0 |
| 1978 | 6 | 0 |
| 1979 | 5 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
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| 1991 | 2 | 0 |
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| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 2 |
| 2002 | 2 | 2 |
| 2003 | 1 | 0 |
| 2004 | 1 | 3 |
| 2005 | 1 | 4 |
| 2006 | 1 | 4 |
| 2007 | 3 | 5 |
| 2008 | 7 | 4 |
| 2009 | 3 | 1 |
| 2010 | 1 | 2 |
| 2011 | 3 | 6 |
| 2012 | 0 | 2 |
| 2013 | 8 | 3 |
| 2014 | 6 | 7 |
| 2015 | 8 | 6 |
| 2016 | 7 | 7 |
| 2017 | 8 | 11 |
| 2018 | 7 | 6 |
| 2019 | 9 | 4 |
| 2020 | 7 | 10 |
| 2021 | 6 | 7 |
| 2022 | 10 | 6 |
| 2023 | 8 | 6 |
| 2024 | 7 | 10 |
| 2025 | 6 | 2 |
| 2026 | 6 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Utility vehicle64US 9,623,912 B2Polaris Industries Inc. · 2017
- Roll over protection apparatus60US 5,042,835 AJ. I. Case Company · 1991
- Modular operator enclosure58US 6,149,228 ADeere & Company · 2000
- Roll-over protection system56US 5,779,272 ACase Corporation · 1998
- Operator enclosure for an agricultural tractor54US 6,189,955 B1Deere & Company · 2001