Assignee
KOLLER MANUFACTURING CORP
US·7 granted patents·37 citations·filing 1987–1990
Top patents by PatentIndex Score
7 records- 0170US4819890AMagnetic tape cassettesKOLLER MANUFACTURING CORP·Filed 1987·Granted Apr 11, 1989·14 cites·36 claims
- 0249US4903916ACassette reel spring having rolled edgesKOLLER MANUFACTURING CORP·Filed 1989·Granted Feb 27, 1990·7 cites·14 claims
- 0345US4974791AMagnetic tape cassettesKOLLER MANUFACTURING CORP·Filed 1988·Granted Dec 4, 1990·6 cites·12 claims
- 0443US5079815AMethod of making a cassette reel spring having rolled edgesKOLLER MANUFACTURING CORP·Filed 1990·Granted Jan 14, 1992·5 cites·4 claims
- 0536US5005780AReel spring for magnetic tape cassettesKOLLER MANUFACTURING CORP·Filed 1990·Granted Apr 9, 1991·3 cites·1 claims
- 0631US4878632AMagnetic tape cassettesKOLLER MANUFACTURING CORP·Filed 1989·Granted Nov 7, 1989·1 cites·23 claims
- 0730US4845820AProcess for making cassette springKOLLER MANUFACTURING CORP·Filed 1987·Granted Jul 11, 1989·1 cites·16 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →