A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
| Inventor Name | City | State | |
|---|---|---|---|
| O'Donnell, Norman | Cincinnati | OH | View patents |
| O'Hara, Charles | Cincinnati | OH | View patents |
| O'Hara, Charles | Cincinnati | OH | View patents |
| O'Hara, Charles | Cincinnati | OH | View patents |
| Obernesser, Jacob | Cincinnati | OH | View patents |
| Obernesser, Jacob | Cincinnati | OH | View patents |
| Obernesser, Jacob | Cincinnati | OH | View patents |
| Ogden, Marcus | Cincinnati | OH | View patents |
| Olhaber, Clement | Cincinnati | OH | View patents |
| Olhaber, Clement | Cincinnati | OH | View patents |
| Olhaber, Clement | Cincinnati | OH | View patents |
| Orton, Gerrit | Cincinnati | OH | View patents |
| Orton, Gerrit | Cincinnati | OH | View patents |
| Orton, Gerritt | Cincinnati | OH | View patents |
| Orton, Gerritt | Cincinnati | OH | View patents |
| Osmond, Edmund | Cincinnati | OH | View patents |
| Osmond, Edmund | Cincinnati | OH | View patents |
| Overend, William | Cincinnati | OH | View patents |
| Overend, William | Cincinnati | OH | View patents |
| Overmyer, John | Cincinnati | OH | View patents |
| Owen, J. | Cincinnati | OH | View patents |