Inventor
Christopher J. Zwettler
Inventor
Lake Elmo, MN, US
Overview
Patents· 23 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer77%
A61FFilters implantable into blood vessels8%
A61GTransport, personal conveyances, or accommodation specially adapted for patients or disabled persons8%
LOC154%
Y10TTechnical subjects covered by former us classification4%
PatentTitleYear
8,196,239'Clinical support pad'20128,051,516'Clinical support pad'2011D0647542'Seed brake'20117,300,016'Tape reel assembly with stiff winding surface for a tape drive system'20077,051,970'Pack arm assembly for use in a tape drive system'20067,006,329'Magnetic tape head assembly with laterally moveable central section'20066,989,204'Magnetic recording medium having a dimensionally stable substrate'20066,918,553'Controlling winding tension to reduce tape pack stress'20056,892,978'Tape guide for biasing a tape path within a tape transport system, such as a data storage tape cartridge'20056,874,720'Data storage tape cartridge with subambient pressure feature'20056,563,670'Data storage tape cartridge with guide having wear pattern'20036,478,244'Tape reel assembly with hub sleeve and spherical piece for a data storage tape cartridge, and method of manufacture'20026,474,582'Three-piece tape reel assembly with integrated driving teeth and metal flanges'20026,457,664'Hybrid belt-driven data storage tape cartridge'20026,405,957'Data storage tape cartridge and tape path with an idler wrap guide for reduced lateral tape movement'20026,343,757'Elongated clearance-type guide for magnetic tape'20026,318,659'Tape reel assembly with hub sleeve for a data storage tape cartridge'20016,249,401'Belt-driven data cartridge with yoke mechanism'20016,205,000'Composite data cartridge drive belt'20015,893,526'Tape guides for data cartridges'19995,541,797'Tape cartridge base plate comprising a novel aluminum alloy'19965,490,029'Compliant tape guide for data cartridges'19965,385,782'Pre-coated data cartridge base plate'1995Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1995–1996Patents assigned to MINNESOTA MINING & MFG (3)· patent assignee history
1995–2002Based in Maplewood, MN, US· patent location history
1999–2007Patents assigned to IMATION CORP (16)· patent assignee history
2001–2007Based in Lake Elmo, MN, US· patent location history
2011–2012Patents assigned to MICROPULSE INC (2)· patent assignee history
2011Patents assigned to AGCO AMITY JV LLC (1)· patent assignee history
2011–2012Based in Stillwater, MN, US· patent location history
2012Patents assigned to CARLSON DELROY W (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| IMATION CORP | 16 | 1999–2007 |
| MINNESOTA MINING & MFG | 3 | 1995–1996 |
| MICROPULSE INC | 2 | 2011–2012 |
| AGCO AMITY JV LLC | 1 | 2011 |
| CARLSON DELROY W | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Lake Elmo, Minnesota, US | 14 | 2001–2007 |
| Maplewood, Minnesota, US | 6 | 1995–2002 |
| Stillwater, Minnesota, US | 3 | 2011–2012 |