Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9344756 | System and method for transmitting files from a sender to a receiver in a television distribution network | Matthew R. Schrier, John F. Denison, John Wurtz | 2016-05-17 |
| 7594254 | System and method for transmitting files from a sender to a receiver in a television distribution network | Matthew R. Schrier, John F. Denison, John Wurtz | 2009-09-22 |
| 5405205 | Sheet medium transport system, particularly for printers and plotters | John C. Venthem, Marlan L. Schmidt | 1995-04-11 |
| 5383733 | Ribbon cassette for a printer | Charles D. Zinsmeyer, Dan R. Poole, Carl Massey | 1995-01-24 |
| 5333005 | Apparatus for raising and lowering plotter marking devices | John C. Venthem | 1994-07-26 |
| 5267802 | Ribbon cassette storage and transfer apparatus for a printer | John C. Venthem, Charles D. Zinsmeyer | 1993-12-07 |
| 4928256 | Digitizer for position sensing | Dan R. Poole | 1990-05-22 |
| 4888710 | Pen tip position detector | John C. Venthem, Mark G. Hill, Dan R. Poole | 1989-12-19 |
| 4734716 | Plotter and aligning method | Eric Silverberg, Marvin L. Freeman, Robert A. Johnson | 1988-03-29 |
| 4479032 | Digitizing cursor and coordinate grid system | — | 1984-10-23 |
| 4473717 | Digitizing system | John Massa | 1984-09-25 |