| Owner | Filings | Most Recent |
|---|---|---|
| Trustees of Columbia University | 3 | 03/22/2026 |
| COLUMBIA UNIVERSITY | 2 | 03/21/2026 |
| Source | Work Type | Status | Applicant | Issued |
|---|---|---|---|---|
| BIS | BL | ISSUED | PAT SEMENTA PLBG&HTG CO.I | 03/16/2007 |
| BIS | EQ | ISSUED | ROCKLEDGE SCAFFOLD CORP | 05/02/2006 |
| BIS | EQ | ISSUED | ROCKLEDGE SCAFFOLD CORP | 04/29/2006 |
| BIS | EQ | ISSUED | ROCKLEDGE SCAFFOLD CORP | 05/24/2005 |