| 年份 | 申请发明专利数量 |
|---|---|
| 2024 | — |
| 2023 | — |
| 2022 | 381 |
| 2021 | 603 |
| 2020 | 467 |
| 2019 | 405 |
| 2018 | 392 |
| 2017 | 313 |
| 2016 | 244 |
| 2015 | 193 |
| 2014 | 169 |
| 2013 | 155 |
| 2012 | 152 |
| 2011 | 109 |
| 2010 | 56 |
| 2009 | 52 |
| 2008 | 62 |
| 2007 | 39 |
| 2006 | 35 |
| 2005 | 25 |
| 2004 | 21 |
| 2003 | 19 |
| 2002 | 19 |
| 2001 | 17 |
| 2000 | 22 |
| 1999 | 20 |
| 1998 | 23 |
| 1997 | 20 |
| 1996 | 16 |
| 1995 | 17 |
| 1994 | 8 |
| 1993 | 15 |
| 1992 | 10 |
| 1991 | 5 |
| 1990 | 1 |