Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7878225 | Vacuum attachment and method | Clifford L. Johns, Daniel D. Sympson, Munaf Chasmawala, Manfred Schmidt | 2011-02-01 |
| 7861875 | Seal for tube | Clifford L. Johns, Daniel D. Sympson, Munaf Chasmawala, Manfred Schmidt | 2011-01-04 |