CK

Charles Keller

EA E.I. Du Pont De Nemours And: 2 patents #2,942 of 8,010Top 40%
IN Ingersoll-Rand: 1 patents #412 of 828Top 50%
Motorola: 1 patents #6,475 of 12,470Top 55%
📍 Philadelphia, PA: #779 of 4,834 inventorsTop 20%
🗺 Pennsylvania: #15,920 of 74,527 inventorsTop 25%
Overall (All Time): #1,040,102 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6770177 Cathodic protection system for air compressor tanks William Lewis 2004-08-03
6024126 Uniform cross-section and ribbed thermoplastic compressor valve Ed Miller, Joy Sawyer Bloom, James Robert Carroll 2000-02-15
5073507 Producing a plasma containing beryllium and beryllium fluoride Schyi-yi Wu 1991-12-17
4298329 Sizing mandrel for thermoplastic netting 1981-11-03
4241768 Infant bottle air removal means Paul Hubert MARIA 1980-12-30