William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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 |
| 7228784 | Rotary or pivoting device and connection module for a rotary or pivoting device The invention relates to a rotary or pivoting device (10) comprising a housing (12), at least one working piston (14) that is located in the housing and can be impinged by hydraulic fluid and a pivoting part (20), which is rotatably drive... | 06/12/2007 |
| 6684755 | Crankshaft, compressor using crankshaft, and method for assembling a compressor including installing crankshaft A crankshaft having at least two eccentric members of different diameter and a method of assembling a reciprocating compressor using a crankshaft having at least two eccentric members of different diameter are provided. A crankshaft having two eccentric m... | 02/03/2004 |
| 6024542 | Piston pump and method of reducing vapor lock A pump includes a housing defining a cavity, at least one bore, a bore inlet, and a bore outlet. The bore extends from the cavity to the outlet and the inlet communicates with the bore at a position between the cavity and the outlet. A crankshaft is mount... | 02/15/2000 |
| 5492050 | Pneumatic actuator with rack and pinion assembly A pneumatic actuator including a first housing having a first cylinder formed therein, a first piston slidably positioned within the cylinder of the first housing, a first rack connected to the first piston and extending therefrom, a second housing having... | 02/20/1996 |