Patents per Year
Top Inventors at Marvin Glass & Associates All Time
Showing 1–50 of 97 inventors
Most Valuable Patents
| Patent | Est. Value | Year |
|---|---|---|
| Action game device | $9M | 1983 |
| Portable self-contained light box drawing toy | $8M | 1986 |
| Viewing device for generating a three-dimensional image | $8M | 1983 |
| Amusement device for transmitting messages | $8M | 1983 |
| Board game apparatus | $7M | 1983 |