| Source | Work Type | Status | Applicant | Issued |
|---|---|---|---|---|
| BIS | — | ISSUED | ZHL GROUP INC | 03/09/2011 |
| BIS | EQ | ISSUED | ZHL GROUP INC | 03/08/2011 |
| BIS | — | ISSUED | ZHL GROUP INC | 08/17/2010 |
| BIS | PL | ISSUED | HEADQUARTERS MECH INC | 08/17/2010 |
| BIS | EQ | ISSUED | ZHL GROUP INC | 08/17/2010 |
| BIS | — | ISSUED | ZHL GROUP INC | 01/06/2010 |
| BIS | — | ISSUED | ZHL GROUP INC | 08/19/2009 |
| BIS | EQ | ISSUED | ZHL GROUP INC | 08/19/2009 |
| BIS | PL | ISSUED | HEADQUARTERS MECH INC | 08/06/2009 |
| BIS | — | ISSUED | ZHL GROUP INC | 06/25/2009 |
| BIS | EQ | ISSUED | ZHL GROUP INC | 06/25/2009 |
| BIS | EQ | ISSUED | ZHL GROUP INC | 06/13/2008 |