| 年份 | 申请发明专利数量 |
|---|---|
| 2024 | — |
| 2023 | — |
| 2022 | 2685 |
| 2021 | 4168 |
| 2020 | 3753 |
| 2019 | 3394 |
| 2018 | 4229 |
| 2017 | 4011 |
| 2016 | 3207 |
| 2015 | 3549 |
| 2014 | 3910 |
| 2013 | 2593 |
| 2012 | 1646 |
| 2011 | 1437 |
| 2010 | 756 |
| 2009 | 621 |
| 2008 | 553 |
| 2007 | 340 |
| 2006 | 198 |
| 2005 | 164 |
| 2004 | 119 |
| 2003 | 88 |
| 2002 | 49 |
| 2001 | 52 |
| 2000 | 53 |
| 1999 | 56 |
| 1998 | 33 |
| 1997 | 37 |
| 1996 | 68 |
| 1995 | 42 |
| 1994 | 52 |
| 1993 | 70 |
| 1992 | 44 |
| 1991 | 25 |
| 1990 | 26 |