| 1 | Power of Attorney | 22 Sep 2009 |
| 2 | TM-1 | 22 Sep 2009 |
| 3 | Additional Representation Sheet | 22 Sep 2009 |
| 4 | TM-16 | 19 Oct 2009 |
| 5 | Reply to Exam Report (MIS-R) | 16 Jul 2012 |
| 6 | Letter | 03 Jul 2014 |
| 7 | RTI | 28 Jul 2017 |
| 8 | Letter | 09 Aug 2017 |
| 9 | Letters related to TLA | 17 Jun 2019 |