| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 0 | 
                                    
                                    0%
                                 | 
| -8 | Refused | 0 | 
                                    
                                    0%
                                 | 
| 1 | Yes_ for a patent only | 1 | 
                                    
                                    3.7%
                                 | 
| 2 | Yes_ for a trademark only | 20 | 
                                    
                                    74.1%
                                 | 
| 3 | Yes_ for both a patent and a trademark | 4 | 
                                    
                                    14.8%
                                 | 
| 4 | No | 2 | 
                                    
                                    7.4%
                                 | 
| Sysmiss | 928 |