Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5881620 | Apparatus for ejecting cut corrugated board from a cutting die | James M. Smithwick, Jr., Jack R. Simpson | 1999-03-16 |
| 5641551 | Multi-purpose rotary slit scorer and products formed thereby | Jack R. Simpson | 1997-06-24 |
| 5636559 | Elastomeric scrap ejector for a cutting die | James M. Smithwick, Jr., Jack R. Simpson | 1997-06-10 |
| 5582571 | Apparatus and method for perforating and creasing paperboard | Jack R. Simpson | 1996-12-10 |
| 5429577 | Multi-purpose rotary slit-scorer and products formed thereby | Jack R. Simpson | 1995-07-04 |
| 5194064 | Creasing rule for rotary die apparatus | Jack R. Simpson | 1993-03-16 |
| 5111725 | Scrap ejector for rotary die cutting apparatus | Jack R. Simpson | 1992-05-12 |