International Audio Visual, Inc.
6Patents
0Active
6Granted
28Portfolio score
Filing activity: Dec 19, 1975 → Nov 25, 1977
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4000503A | Cold cathode for infrared image tube | Electricity | 20 | Expired |
| US4139165A | Parallel-feed tape spooling apparatus for concurrent winding of magnetic tapes onto a plurality of spools of the type used in endless tape cartridges | Performing Operations; Transporting | 15 | Expired |
| US4032370A | Method of forming an epitaxial layer on a crystalline substrate | Electricity | 14 | Expired |
| US4085296A | Modulated sound reading system | Physics | 14 | Expired |
| US4174247A | Apparatus for splicing the ends of magnetic tape wound on spools of the type used in endless tape cartridges | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4152052A | Motion picture optical system | Physics | 2 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.