DN

David W. Norwood

SC Sweetheart Cup Company: 8 patents #1 of 43Top 3%
📍 Joppatowne, MD: #9 of 102 inventorsTop 9%
🗺 Maryland: #4,049 of 35,612 inventorsTop 15%
Overall (All Time): #661,720 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
6852071 Systems and methods for making paperboard containers Romano Balordi, Semyon Bekker, Alvin Chester Hartman, Gregory Neal 2005-02-08
6173858 Modified two-piece thermoformed cup Larry S. Maccherone 2001-01-16
6139481 Gas fired burner for sealing single and double sided polycoated paper cups Romano Balordi 2000-10-31
6126585 Apparatus and method to lubricate and curl paperboard container rims Robert Brown, Edward M. Earnest 2000-10-03
6027439 Two-piece paperboard lids having spiral-wound side wall and non-circular geometries, and methods of making the same Charles E. Busse, Edward M. Earnest 2000-02-22
5456754 Apparatus for coating paperboard containers Derek S. Matheson, Wesley R. Bush, Carlton L. Kemmet, Donald C. Lundgren, Robert Brown +2 more 1995-10-10
5281446 Methods for coating paper board containers Derek S. Matheson, Wesley R. Bush, Carlton L. Kemmet, Donald C. Lundgren, Robert Brown +2 more 1994-01-25
5078313 Wax-coated paperboard containers Derek S. Matheson, Wesley R. Bush, Carton L. Kemmet, Donald C. Lundgren, Robert Brown +3 more 1992-01-07