FS

Frank L. Sprowl

OC Owens-Illinois Closure: 6 patents #22 of 125Top 20%
📍 Sturgis, MI: #14 of 79 inventorsTop 20%
🗺 Michigan: #15,670 of 86,293 inventorsTop 20%
Overall (All Time): #886,540 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
5924586 Plastic closure with compression molded liner James L. Gregory, Dennis J. Burzynski, Bruce J. Rote 1999-07-20
5690882 Method for making a tamper indicating package 1997-11-25
5650113 Method of making plastic beverage closure James L. Gregory, Dennis J. Burzynski, Bruce J. Rote 1997-07-22
5462187 Plastic beverage closure James L. Gregory, Dennis J. Burzynski, Bruce J. Rote 1995-10-31
5443171 Tamper indicating package 1995-08-22
5265747 Plastic beverage closure James L. Gregory, Dennis J. Burzynski, Bruce J. Rote 1993-11-30