Celebrity Inventors
Actor Zeppo Marx patented a "Cardiac Pulse Rate Monitor" in 1969.
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 |
| 4375914 | Battery powered camera A battery powered camera with a collapsible handgrip movable between a closed and an extended position is equipped with a battery checker that signals when the battery drops in capacity to a predetermined level. The battery checker is operable only during... | 03/08/1983 |
| 4346975 | Multiple control system for camera An automatic adjustment system for a camera which time division multiplexes inputs from a scanning system, and an automatic exposure control or a film feeding motor speed control into an evaluation circuit. The same electronic circuitry is thereby used fo... | 08/31/1982 |
| 4303320 | Automatic focus adjusting device An improved automatic focusing system for an optical instrument includes a scanner driven oscillatably across an angle to detect a subject positioned between infinity and the minimum focus condition of the objective lens of the optical instrument. The sca... | 12/01/1981 |
