| 年份 | 申请发明专利数量 |
|---|---|
| 2024 | — |
| 2023 | — |
| 2022 | 268 |
| 2021 | 441 |
| 2020 | 448 |
| 2019 | 405 |
| 2018 | 572 |
| 2017 | 452 |
| 2016 | 560 |
| 2015 | 387 |
| 2014 | 416 |
| 2013 | 286 |
| 2012 | 177 |
| 2011 | 115 |
| 2010 | 85 |
| 2009 | 119 |
| 2008 | 121 |
| 2007 | 75 |
| 2006 | 72 |
| 2005 | 57 |
| 2004 | 50 |
| 2003 | 52 |
| 2002 | 36 |
| 2001 | 36 |
| 2000 | 37 |
| 1999 | 14 |
| 1998 | 38 |
| 1997 | 21 |
| 1996 | 25 |
| 1995 | 14 |
| 1994 | 29 |
| 1993 | 37 |
| 1992 | 26 |
| 1991 | 19 |
| 1990 | 19 |