RB

Ronald B. Birkholz

3M: 4 patents #3,441 of 11,543Top 30%
US United States Postal Service: 1 patents #273 of 464Top 60%
Overall (All Time): #1,054,414 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5663227 Release agent for linerless pressure sensitive postage stamps Mark E. Schwartz 1997-09-02
5518811 Pressure-sensitive adhesive tape and a process for producing same James J. Pedginski 1996-05-21
5183705 Pressure-sensitive adhesive composition having high shear strength Mark D. Glad 1993-02-02
5145718 Processs for producing pressure-sensitive adhesive tape James J. Pedginski 1992-09-08
4895747 Pressure sensitive adhesive label Richard R. Riter 1990-01-23