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Highland Park, IL, United States of America

Efrem M Ostrowsky

Average Co-Inventor Count = 1.21

ph-index = 21

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 1,092

Efrem M OstrowskyWilliam G Crowle (3 patents)Efrem M OstrowskyThomas H Hayes (2 patents)Efrem M OstrowskyJean-Pierre Lina (1 patent)Efrem M OstrowskyDavid G Moore (1 patent)Efrem M OstrowskyJohn P Kinsley (1 patent)Efrem M OstrowskyWerner R Luenser (1 patent)Efrem M OstrowskyRonald L Kelly (1 patent)Efrem M OstrowskyHerve Pennaneach (1 patent)Efrem M OstrowskyAnthony F Schepis (1 patent)Efrem M OstrowskyHerve Pennaneach (1 patent)Efrem M OstrowskyEfrem M Ostrowsky (28 patents)William G CrowleWilliam G Crowle (12 patents)Thomas H HayesThomas H Hayes (35 patents)Jean-Pierre LinaJean-Pierre Lina (10 patents)David G MooreDavid G Moore (8 patents)John P KinsleyJohn P Kinsley (7 patents)Werner R LuenserWerner R Luenser (4 patents)Ronald L KellyRonald L Kelly (1 patent)Herve PennaneachHerve Pennaneach (1 patent)Anthony F SchepisAnthony F Schepis (1 patent)Herve PennaneachHerve Pennaneach (1 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Ethyl Products Company (9 from 40 patents)

2. Vca, Inc. (8 from 31 patents)

3. Ethyl Molded Products Company (5 from 10 patents)

4. Pittway Corporation (2 from 268 patents)

5. Seaquist Closures (2 from 33 patents)

6. Other (1 from 832,718 patents)

7. Chanel, Inc. (1 from 43 patents)

8. Seaquist Closures, a Division of Pittway Corporation (1 from 9 patents)


28 patents:

1. 5735438 - Press-to-open dispensing closure

2. 4986453 - Atomizing pump

3. 4887747 - Two-piece, snap-action closure

4. 4776501 - Self-closing, press-to-open, dispensing closure

5. D292889 - Dispensing closure cap

6. 4487324 - Tamper-evident dispensing closure

7. 4478343 - Tamper-indicating closure

8. 4470513 - Tamper-indicating closure

9. 4462502 - Threaded closure with liner

10. 4458821 - Tamper-indicating closure

11. 4458822 - Tamper-indicating closure

12. 4427126 - Vented closure

13. 4414705 - Overcenter hinge

14. 4402418 - Tamperproof closure

15. 4382521 - Vented closure

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idiyas.com
as of
12/11/2025
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