Robert Cushing Hamlen has been granted 7 US patents while listed as an inventor at Medtronic . The first was granted in 1999 and the most recent in July 2005. Robert Cushing Hamlen ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list Robert Cushing Hamlen in Windom, MN, US.
Patents per Year Patents granted per year, 1999 to 2005 Bar chart with a peak of 4 patents in 1999. peak 4 1999: 4 patents 1999 2001: 1 patents 2001 2003: 1 patents 2003 2005: 1 patents 2005
Issued Patents All Time
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Showing 1–7 of 7 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
6915157 Implantable medical device for assessing heart failure state from Mechanical Pulsus Alternans Tommy D. Bennett , Lawrence J. Mulligan , Edwin G. Duffin , Wael Abo-Auda 2005-07-05
$49,929,000
6551290 Catheter for target specific drug delivery Dennis D. Elsberry , Chris Christiansen , Mary M. Morris , Douglas Hankner 2003-04-22
$66,945,000
6293752 Junction for shears sensitive biological fluid paths Cynthia Clague , Frank D. Dorman , Donald W. Hegeman, III , Timothy A. Miller , Joseph E. Poissant +2 more 2001-09-25
5971023 Junction for shear sensitive biological fluid paths Cynthia Clague , Frank D. Dorman , Donald W. Hegeman, III , Timothy A. Miller , Joseph E. Poissant +2 more 1999-10-26
$79,585,000
5922202 Inlet manifold for blood oxygenator apparatus Roger J. Elgas , Robert F. Gremel 1999-07-13
$91,231,000
5906741 Outlet manifold for blood oxygenator apparatus Roger J. Elgas , Robert F. Gremel 1999-05-25
$108,770,000
5858233 Transition manifold for blood oxygenator apparatus Roger J. Elgas , Robert F. Gremel 1999-01-12
$95,664,000
