Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4776631 | Self-contained RV sanitary systems | John M. Antos | 1988-10-11 |
| 4769860 | Portable toilet holding tank spout | John M. Antos, John A. Hoffman, John T. Cameron | 1988-09-13 |
| 4751753 | Portable toilet enclosure | John R. Selina, David Cameron | 1988-06-21 |
| 4641383 | Portable toilet holding tank spout | John M. Antos, John A. Hoffman, John T. Cameron | 1987-02-10 |
| D287937 | Bottle | Michael W. Larime, John R. Selina | 1987-01-27 |
| 4462124 | Flush apparatus for water closet and method of operation | John M. Antos, Richard G. Lapham, Frank T. Sargent | 1984-07-31 |
| 4305164 | Portable toilet facility | Frank T. Sargent, James T. Embach, John M. Antos | 1981-12-15 |
| D262051 | Portable toilet | John A. Hoffman, John M. Antos | 1981-11-24 |
| D256722 | Toilet | Frank T. Sargent, Arthur W. Henke | 1980-09-02 |
| 4217668 | Portable toilet | John A. Hoffman, John M. Antos, Arthur W. Henke | 1980-08-19 |