| 年份 | 申请发明专利数量 |
|---|---|
| 2024 | — |
| 2023 | — |
| 2022 | 579 |
| 2021 | 863 |
| 2020 | 698 |
| 2019 | 465 |
| 2018 | 564 |
| 2017 | 370 |
| 2016 | 332 |
| 2015 | 318 |
| 2014 | 338 |
| 2013 | 174 |
| 2012 | 85 |
| 2011 | 54 |
| 2010 | 39 |
| 2009 | 48 |
| 2008 | 44 |
| 2007 | 44 |
| 2006 | 33 |
| 2005 | 21 |
| 2004 | 21 |
| 2003 | 20 |
| 2002 | 17 |
| 2001 | 13 |
| 2000 | 17 |
| 1999 | 18 |
| 1998 | 22 |
| 1997 | 14 |
| 1996 | 21 |
| 1995 | 12 |
| 1994 | 16 |
| 1993 | 17 |
| 1992 | 9 |
| 1991 | 5 |
| 1990 | 4 |