Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10703567 | Storage material handling system | Charles M. Grinnell, John Kawola, Mary Ellen Sparrow, Stephen C. Toebes, Clara Vu +1 more | 2020-07-07 |
| 10399777 | Storage material handling system | Charles M. Grinnell, John Kawola, Mary Ellen Sparrow, Stephen C. Toebes, Clara Vu +1 more | 2019-09-03 |
| 10195470 | Water spray fume cleansing with demand-based operation | Andrey V. Livchak | 2019-02-05 |
| 10040630 | Storage material handling system | Charles M. Grinnell, John Kawola, Mary Ellen Sparrow, Stephen C. Toebes, Clara Vu +1 more | 2018-08-07 |
| 9694977 | Storage material handling system | Matthew Aprea, Charles M. Grinnell, John Kawola, Mary Ellen Sparrow, Stephen C. Toebes +1 more | 2017-07-04 |
| D325339 | Combined collapsible tube and cap | — | 1992-04-14 |
| D324997 | Container | — | 1992-03-31 |
| D323292 | Container | — | 1992-01-21 |
| 4331001 | Accumulator-dehydrator assembly for an air conditioning system | — | 1982-05-25 |