| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 0 |
0%
|
| -8 | Refused | 0 |
0%
|
| 1 | Yes_ for a patent only | 1 |
0.5%
|
| 2 | Yes_ for a trademark only | 11 |
5.2%
|
| 3 | Yes_ for both a patent and a trademark | 4 |
1.9%
|
| 4 | No | 195 |
92.4%
|
| Sysmiss | 875 |