Bizarre Patents
Combination Beverage Container and Spittoon
A combination beverage container and spittoon includes a bottom portion including outer wall and a first inner wall defining a spittoon space.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 6468868 | Method of forming high density multi-state mask ROM cells A method of forming multi-state mask ROM cells on a semiconductor substrate is disclosed. The method comprises following steps. Firstly, a pad oxide layer is formed on a semiconductor substrate. Then the pad oxide layer is patterned so as to form a plural... | 10/22/2002 |
