| 年份 | 申请发明专利数量 |
|---|---|
| 2024 | — |
| 2023 | — |
| 2022 | 367 |
| 2021 | 488 |
| 2020 | 386 |
| 2019 | 281 |
| 2018 | 304 |
| 2017 | 399 |
| 2016 | 352 |
| 2015 | 224 |
| 2014 | 187 |
| 2013 | 237 |
| 2012 | 186 |
| 2011 | 143 |
| 2010 | 141 |
| 2009 | 164 |
| 2008 | 121 |
| 2007 | 115 |
| 2006 | 83 |
| 2005 | 39 |
| 2004 | 38 |
| 2003 | 41 |
| 2002 | 37 |
| 2001 | 40 |
| 2000 | 46 |
| 1999 | 24 |
| 1998 | 44 |
| 1997 | 19 |
| 1996 | 18 |
| 1995 | 17 |
| 1994 | 11 |
| 1993 | 10 |
| 1992 | 13 |
| 1991 | 12 |
| 1990 | 13 |