Assignee
KNOX MFG CO
8 granted patents·288 citations·filing 1976–1980
Top patents by PatentIndex Score
8 records- 0197US4060310ADetachable modular drive unit for projection screen apparatusKNOX MFG CO·Filed 1976·Granted Nov 29, 1977·54 cites·7 claims
- 0296US4300318ACabinet for use in abrasive blasting systemKNOX MFG CO·Filed 1980·Granted Nov 17, 1981·92 cites·8 claims
- 0394US4072404AControl mechanism for positioning projection screen in closed positionKNOX MFG CO·Filed 1976·Granted Feb 7, 1978·31 cites·6 claims
- 0492US4232487AAbrading deviceKNOX MFG CO·Filed 1978·Granted Nov 11, 1980·57 cites·47 claims
- 0591US4059339ABrake mechanism for motor driven projection screenKNOX MFG CO·Filed 1976·Granted Nov 22, 1977·23 cites·8 claims
- 0689US4045123AControl device to position projection screen for viewingKNOX MFG CO·Filed 1976·Granted Aug 30, 1977·19 cites·10 claims
- 0744US4152852ATransparency viewer assemblyKNOX MFG CO·Filed 1978·Granted May 8, 1979·8 cites·8 claims
- 0834US4385462AIlluminated transparency viewing system with overlay device and film clipsKNOX MFG CO·Filed 1979·Granted May 31, 1983·4 cites·17 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →