Douglas R. Plourde has been granted 9 US patents while listed as an inventor at Imation . The first was granted in 2000 and the most recent in October 2009. Douglas R. Plourde ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Douglas R. Plourde in Somerset, WI, US.
Patents per Year Patents granted per year, 2000 to 2009 Bar chart with a peak of 3 patents in 2004. peak 3 2000: 2 patents 2000 2002: 1 patents 2002 2003: 1 patents 2003 2004: 3 patents 2004 2006: 1 patents 2006 2009: 1 patents 2009
Issued Patents All Time
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Showing 1–9 of 9 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
7597607 Magnetic recording tape edge processing William Qualls , Kerry D. Reimer , Siu-Yue Tam 2009-10-06
$4,676,000
7114947 Optical disk mold tooling for reduced edge wedge Chad R. Sandstrom , Dean E. Sitz , Donald J. Kerfeld , John R. Johnson 2006-10-03
$4,329,000
6811472 Inline lapping of magnetic tape Nang T. Tran , Arne B. Boberg , William Qualls , Edward L. Schneider 2004-11-02
$8,448,000
6752611 Optical disk mold tooling for reduced edge wedge Chad R. Sandstrom , Dean E. Sitz , Donald J. Kerfeld , John R. Johnson 2004-06-22
$2,493,000
6678238 Mold for manufacturing double-sided disk shaped articles for storing data Dean E. Sitz , Jeffrey M. Novotny , Chad R. Sandstrom 2004-01-13
$2,284,000
6644581 Flange guide for improved tape winding Helen J. Yoo , William Qualls 2003-11-11
$7,374,000
6490242 Disk cartridge with dual housing structure Brian Bonn , Warren L. Dalziel , Michael A. Maiers , Scot C. Fairchild , Wayne M. Hector +3 more 2002-12-03
6147962 Data storage cartridge having a restraining mechanism Thiruppathy Srinivasan , Chad R. Sandstrom , Brian Bonn 2000-11-14
6139307 Assembly for molding optical data storage disks formatted on both sides Dean E. Sitz , Val M. Schmitz 2000-10-31
$1,936,000