DT

David A. Tomkins

SS S. C. Johnson & Son: 4 patents #2 of 96Top 3%
📍 Racine, WI: #1 of 107 inventorsTop 1%
🗺 Wisconsin: #118 of 3,225 inventorsTop 4%
Overall (2002): #16,676 of 266,432Top 7%
4
Patents 2002

Issued Patents 2002

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6450419 Self contained liquid atomizer assembly Edward J. Martens, III, George A. Clark, Thomas A. Helf, Eric R. Navin, David J. Schram 2002-09-17
6382522 Attachment method for piezoelectric elements George A. Clark, Eric R. Navin, Edward J. Martens, III 2002-05-07
6378780 Delivery system for dispensing volatiles Edward J. Martens, III 2002-04-30
6341732 Method and apparatus for maintaining control of liquid flow in a vibratory atomizing device Frederick H. Martin, Thomas A. Helf, David J. Schram, Maryann Jashinske, Edward J. Martens, III 2002-01-29