Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8512091 | Valve and retainer assembly for latex balloons | David C. Nelson | 2013-08-20 |
| 8251111 | Balloon inflator | David C. Nelson, Valent L. Meluch, Wesley A. Schroeder | 2012-08-28 |
| 7850506 | Balloon weight and method for presenting lighter-than-air balloons for retail sale | David C. Nelson, Valent L. Meluch, Dan Bertschi | 2010-12-14 |
| 7147016 | Balloon inflation device | David C. Nelson, Michael J. Frazier, John J. Andrisin, III | 2006-12-12 |
| 6814644 | Valve and retainer for latex balloons | David C. Nelson | 2004-11-09 |
| 6575806 | Balloon locking cup and securing system | David C. Nelson, John J. Andrisin, III | 2003-06-10 |
| 6430804 | Balloon locking cup and securing system | David C. Nelson, John J. Andrisin, III | 2002-08-13 |
| 5411427 | Balloon weight and latch assembly | David C. Nelson, Robert L. Waldo | 1995-05-02 |