DG

David Grewell

BU Branson Ultrasonics: 12 patents #2 of 94Top 3%
IU Iowa State University: 4 patents #160 of 1,643Top 10%
TI Textron Innovations: 2 patents #387 of 1,177Top 35%
EI Edison Welding Institute: 1 patents #26 of 75Top 35%
KE Kent: 1 patents #5 of 14Top 40%
OU Ohio State University: 1 patents #193 of 531Top 40%
📍 Ames, IA: #49 of 1,427 inventorsTop 4%
🗺 Iowa: #600 of 15,303 inventorsTop 4%
Overall (All Time): #220,113 of 4,157,543Top 6%
20
Patents All Time

Issued Patents All Time

Showing 1–20 of 20 patents

Patent #TitleCo-InventorsDate
11359069 Plastic composition with spent filter media filler Somayajulu Venkata Satya Gandikota, Jeff Underwood 2022-06-14
11214714 Thermoplastic poly acrylated glycerol adhesives useful in cellulosic products Eric W. Cochran, Nacu Hernandez, R. Chris WILLIAMS, Michael Forrester, Andrew B. Becker +1 more 2022-01-04
10442118 Closed loop 3D printing 2019-10-15
9988318 Biodegradable fertilizer James Schrader, William R. Graves 2018-06-05
8895778 Depolymerization of polylactic acid Gowrishankar Srinivasan 2014-11-25
8172969 Apparatus and method for ultrasonic processing of laminates Edward W. Lee, Avraham Benatar 2012-05-08
7892372 Apparatus and method for ultrasonic processing of laminates Edward W. Lee, Avraham Benatar 2011-02-22
6867388 Electronic masking laser imaging system Donald C. Lovett 2005-03-15
6528755 Light guide for laser welding Justin R. Bickford, Donald C. Lovett, Paul Rooney 2003-03-04
6486433 Transparent pressure bladder Donald C. Lovett 2002-11-26
6329629 Distance mode control for laser welding 2001-12-11
6205160 Laser diode array 2001-03-20
6064798 Welding method and apparatus Donald C. Lovett 2000-05-16
5949959 Welding method and apparatus Donald C. Lovett 1999-09-07
5855706 Simultaneous amplitude and force profiling during ultrasonic welding of thermoplastic workpieces 1999-01-05
5846377 Method for processing workpieces by ultrasonic energy Jeffrey Frantz 1998-12-08
5788791 Method of determining the collapse of plastic parts 1998-08-04
5772814 Welding system and method of setting welding machine parameters 1998-06-30
5658408 Method for processing workpieces by ultrasonic energy Jeffrey Frantz 1997-08-19
5313034 Thermoplastic welding Robert A. Grimm, Marc St. John 1994-05-17