| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | United Kingdom | 2 | |
| #3 | Germany | 1 | |
| #4 | EPO (European Patent Office) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology |
| # | Technology | |
|---|---|---|
| #1 | Special information storage |
| # | Name | Total Patents |
|---|---|---|
| #1 | Georgens Harold H | 3 |
| #2 | Olmsted Dennis R | 3 |
| #3 | Christensen Dean L | 2 |
| #4 | Georgens Harold Henry | 1 |
| #5 | Michelson Manfred G | 1 |
| #6 | Brokaw A Ray | 1 |
| #7 | Mroz Edward | 1 |
| #8 | Wesendunk Richard J | 1 |
| #9 | Stevens Eric S | 1 |
| #10 | Michelson Manfred George Van | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4642721A | Magnetic tape cartridge with increased data packing density | |
| US4556923A | Tape cartridge drive with cartridge door opening mechanism | |
| US4635155A | Magnetic tape cartridge with increased data track packing density | |
| US4586095A | Fail-safe locking mechanism for tape cartridge drive with movable read/write head | |
| US4559571A | Tape cartridge drive with movable read/write head | |
| US4457473A | Tape cartridge housing | |
| US4498112A | Tape cartridge receptacle | |
| GB1551615A | Tape transport |