Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
DW

David A. Winchell — 33 Patents

BLBaxter Travenol Laboratories: 25 patents #1 of 589Top 1%
BIBaxter International: 8 patents #213 of 2,334Top 10%
ISIc Sensors: 1 patents #6 of 9Top 70%
New Richmond, WI: #5 of 231 inventorsTop 3%
Wisconsin: #855 of 40,088 inventorsTop 3%
Overall (All Time): #109,118 of 4,157,543Top 3%
33 Patents All Time

Issued Patents All Time

Showing 26–33 of 33 patents

Patent #TitleCo-InventorsDate
D258720 Bottle William M. Evans 1981-03-31
D258346 Bottle William M. Evans 1981-02-24
4236646 Closure for pharmaceutical containers Rudolf Ganz 1980-12-02
4234103 Diagnostic reagent dispensing bottle Frederick P. Strobl, Jr., William A. DeVroom 1980-11-18
4232721 Collapsible solution container having rectangular shoulder Jerry D. Martin, Stephen Pearson, Gary A. Ward 1980-11-11
4227954 Method for sealing container cap parts Gary A. Ward 1980-10-14
4191231 Flexible collapsible containers, and method of molding Jerry D. Martin, Frank Roe 1980-03-04
4181232 Sealed closure for plastic container with interlocking protective outer closure David Bellamy 1980-01-01