Growing community of inventors

Newtown Square, PA, United States of America

Gregory Sprishen

Average Co-Inventor Count = 2.62

ph-index = 12

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 = 471

Gregory SprishenFrederick N Biesecker, Ii (10 patents)Gregory SprishenWilliam Gordon Knestrick, Iii (5 patents)Gregory SprishenDonald Rochow (2 patents)Gregory SprishenStewart A Swiss (1 patent)Gregory SprishenChris Cotellese (1 patent)Gregory SprishenJason Robinson (1 patent)Gregory SprishenFrederick Biesecker (1 patent)Gregory SprishenWilliam Gordon Iii Knestrick (0 patent)Gregory SprishenGregory Sprishen (12 patents)Frederick N Biesecker, IiFrederick N Biesecker, Ii (54 patents)William Gordon Knestrick, IiiWilliam Gordon Knestrick, Iii (7 patents)Donald RochowDonald Rochow (3 patents)Stewart A SwissStewart A Swiss (1 patent)Chris CotelleseChris Cotellese (1 patent)Jason RobinsonJason Robinson (1 patent)Frederick BieseckerFrederick Biesecker (1 patent)William Gordon Iii KnestrickWilliam Gordon Iii Knestrick (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Drug Plastics & Glass Company, Inc. (12 from 65 patents)


12 patents:

1. 9187220 - Child-resistant cap and container assembly

2. 8777032 - Child-resistant cap and container assembly

3. 8590719 - Two piece child resistant closure that is easy to open and/or manufacture

4. D674697 - Bottle cap

5. D666495 - Dosage cap

6. D663202 - Bottle closure

7. D597840 - Bottle cap

8. D546181 - Container closure

9. D513585 - Bottle closure

10. D511457 - Container closure with handle

11. 6854613 - Container and child-resistant closure system

12. D391485 - Bottle

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as of
1/13/2026
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