EO

Efrem M. Ostrowsky

EP Ethyl Products: 8 patents #1 of 14Top 8%
EP Ethyl Molded Products: 5 patents #1 of 7Top 15%
PI Pittway: 2 patents #43 of 169Top 30%
SC Seaquist Closures: 2 patents #2 of 7Top 30%
SP Seaquist Closures, A Division Of Pittway: 1 patents #4 of 10Top 40%
Overall (All Time): #242,625 of 4,157,543Top 6%
19
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5735438 Press-to-open dispensing closure 1998-04-07
4986453 Atomizing pump Jean-Pierre Lina, Hervé Pennaneac′h, David Moore 1991-01-22
4887747 Two-piece, snap-action closure John P. Kinsley 1989-12-19
4776501 Self-closing, press-to-open, dispensing closure 1988-10-11
D292889 Dispensing closure cap 1987-11-24
4487324 Tamper-evident dispensing closure 1984-12-11
4478343 Tamper-indicating closure 1984-10-23
4470513 Tamper-indicating closure 1984-09-11
4462502 Threaded closure with liner Werner R. Luenser 1984-07-31
4458822 Tamper-indicating closure 1984-07-10
4458821 Tamper-indicating closure 1984-07-10
4427126 Vented closure 1984-01-24
4414705 Overcenter hinge 1983-11-15
4402418 Tamperproof closure 1983-09-06
4382521 Vented closure 1983-05-10
4381840 Threaded closure with free-floating liner 1983-05-03
4369889 Tamperproof closure 1983-01-25
4206851 Tamperproof closure 1980-06-10
D255012 Dispenser cap for a pressurized container 1980-05-20