F02D 2250/41
Control to generate negative pressure in the intake manifold
Official title: Control to generate negative pressure in the intake manifold, e.g. for fuel vapor purging or brake booster
F02D2250/41 (Control to generate negative pressure in the intake manifold) appears on 198 US grants and 185 published applications in this corpus.
Search patents in F02D- Granted patents
- 198
- Published applications
- 185
- Assignees
- 53
- Inventors
- 424
- Latest grant
- 29 Oct 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 1 |
| 2002 | 6 | 6 |
| 2003 | 10 | 10 |
| 2004 | 7 | 9 |
| 2005 | 5 | 3 |
| 2006 | 9 | 7 |
| 2007 | 5 | 6 |
| 2008 | 5 | 7 |
| 2009 | 3 | 7 |
| 2010 | 5 | 6 |
| 2011 | 5 | 7 |
| 2012 | 5 | 10 |
| 2013 | 12 | 9 |
| 2014 | 8 | 15 |
| 2015 | 11 | 15 |
| 2016 | 12 | 14 |
| 2017 | 19 | 13 |
| 2018 | 13 | 10 |
| 2019 | 8 | 9 |
| 2020 | 17 | 15 |
| 2021 | 12 | 1 |
| 2022 | 5 | 2 |
| 2023 | 0 | 1 |
| 2024 | 3 | 2 |
By publication year. Applications have been published since 2001.
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Most cited
By later US patents
- Vehicle braking control190US 7,930,087 B2Ford Global Technologies, LLC · 2011
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