| Source | Work Type | Status | Applicant | Issued |
|---|---|---|---|---|
| BIS | PL | ISSUED | PREMIER PLBNG & HTNG SPEC | 08/27/2021 |
| BIS | PL | ISSUED | PREMIER PLBG. & HTG SPECI | 04/07/2014 |
| BIS | PL | ISSUED | PREMIER PLBG. & HTG SPECI | 09/19/2012 |
| BIS | PL | ISSUED | PREMIER PLBG. & HTG SPECI | 10/05/2011 |
| BIS | — | ISSUED | ZHL GROUP INC | 03/21/2011 |
| BIS | EQ | ISSUED | ZHL GROUP INC | 03/08/2011 |
| BIS | — | ISSUED | ZHL GROUP INC | 12/10/2010 |
| BIS | EQ | ISSUED | ZHL GROUP INC | 12/06/2010 |
| BIS | PL | ISSUED | PREMIER PLBG. & HTG SPECI | 09/27/2010 |
| BIS | PL | ISSUED | PREMIER PLBG. & HTG SPECI | 09/18/2009 |
| BIS | — | ISSUED | ZHL GROUP INC | 08/27/2009 |
| BIS | — | ISSUED | ZHL GROUP INC | 03/20/2009 |
| BIS | EQ | ISSUED | ZHL GROUP INC | 03/20/2009 |