David E. Duncanson has been granted 17 US patents while listed as an inventor at Black & Decker . The first was granted in 2000 and the most recent in June 2009. David E. Duncanson ranks #263,971 of 4,157,543 US inventors in our database (top 6.3%). Patent records list David E. Duncanson in Newbury, MA, US.
Patents per Year Patents granted per year, 2000 to 2009 Bar chart with a peak of 3 patents in 2003. peak 3 2000: 2 patents 2000 2001: 2 patents 2001 2002: 1 patents 2002 2003: 3 patents 2003 2004: 2 patents 2004 2005: 1 patents 2005 2006: 2 patents 2006 2007: 2 patents 2007 2008: 1 patents 2008 2009: 1 patents 2009
Issued Patents All Time
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Showing 1–17 of 17 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
7546790 Table saw James R. Parks , Robert S. Gehret , Scott M. Livingston , Michael L. O'Banion , Robert P. Welsh +13 more 2009-06-16
$5,426,000
D571829 Portions of a table saw Robert P. Welsh , Mark A. Nichols , Scott E. Stropkay 2008-06-24
D554672 Table saw fence Robert P. Welsh , Mark A. Nichols , Scott E. Stropkay 2007-11-06
7267038 Table saw James R. Parks , Robert S. Gehret , William R. Stumpf , Frederick R. Bean , Daniel Puzio +6 more 2007-09-11
$6,909,000
D527032 Portions of a table saw Robert P. Welsh , Mark A. Nichols , Scott E. Stropkay 2006-08-22
D514604 Portions of a table saw Robert P. Welsh , Mark A. Nichols , Scott E. Stropkay 2006-02-07
6907807 Table saw James R. Parks , Robert S. Gehret , William R. Stumpf , Frederick R. Bean , Daniel Puzio +6 more 2005-06-21
$19,564,000
D498773 Portions of a table saw Robert P. Welsh , Mark A. Nichols , Scott E. Stropkay 2004-11-23
6688202 Table saw James R. Parks , Robert S. Gehret , Scott M. Livingston , Michael L. O'Banion , Robert P. Welsh +13 more 2004-02-10
$9,849,000
D479538 Portions of table saw Robert P. Welsh , Mark A. Nichols , Scott E. Stropkay 2003-09-09
6575067 Table saw James R. Parks , Robert S. Gehret , Scott M. Livingston , Michael L. O'Banion , Robert P. Welsh +13 more 2003-06-10
$10,898,000
6530303 Table saw James R. Parks , Robert S. Gehret , William R. Stumpf , Frederick R. Bean , Daniel Puzio +6 more 2003-03-11
$18,540,000
D461456 Switch Robert P. Welsh , Mark A. Nichols , Scott E. Stropkay 2002-08-13
D447497 Leg assembly for a table saw Robert P. Welsh , Mark A. Nichols , Scott E. Stropkay 2001-09-04
D440239 Side panel for a table saw Robert P. Welsh , Mark A. Nichols , Scott E. Stropkay 2001-04-10
D427214 Fence for a power tool Robert P. Welsh , Mark A. Nichols , Scott E. Stropkay 2000-06-27
D422290 Table saw Robert P. Welsh , Mark A. Nichols , Scott E. Stropkay 2000-04-04