| 2026-01-31 | Bodily partitions |
| 2024-01-04 | Philadelphia train system |
| 2023-02-19 | Places for some piercings |
| 2022-06-26 | Partitions between nostrils |
| 2022-06-24 | BART : San Francisco :: ___ : Philadelphia |
| 2020-09-13 | Dividing membranes |
| 2019-02-23 | Anatomical dividers |
| 2018-06-10 | San Francisco : BART :: Philadelphia : ___ |
| 2017-05-18 | BART : San Francisco :: ___ : Philadelphia |
| 2016-03-04 | Philadelphia train system |
| 2012-04-14 | Walls of the heart |
| 2011-07-28 | Anatomical dividers |
| 2010-01-16 | Dividers of 35-Down |
| 2007-10-25 | Dividing membranes |
| 2005-07-31 | Anatomical dividers |
| 2005-07-06 | Dividing membranes |
| 2004-12-14 | Nasal partitions |
| 2004-08-01 | Membranes |
| 2002-08-28 | Biological partitions |
| 2002-06-19 | Nasal dividers |
| 2001-03-16 | Anatomical dividers |
| 2000-12-30 | Dividing walls |
| 2000-06-28 | Nasal dividers |
| 1998-11-17 | Nasal partitions |
| 1998-03-05 | Nasal partitions |
| 1997-11-12 | Dividing membranes |
| 1996-10-25 | Nose parts |
| 1995-06-17 | Plant partitions |