Growing community of inventors

Evansville, IN, United States of America

William Douglas Sprick

Average Co-Inventor Count = 2.31

ph-index = 9

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 = 263

William Douglas SprickChristopher B Clodfelter (12 patents)William Douglas SprickJason Bragg (6 patents)William Douglas SprickMarc A Briere (6 patents)William Douglas SprickMark Alan Deutsch (5 patents)William Douglas SprickKarla Koring (5 patents)William Douglas SprickTodd D Faubion (3 patents)William Douglas SprickGary V Montgomery (2 patents)William Douglas SprickTodd E Mathes (1 patent)William Douglas SprickWilliam Douglas Sprick (21 patents)Christopher B ClodfelterChristopher B Clodfelter (21 patents)Jason BraggJason Bragg (10 patents)Marc A BriereMarc A Briere (8 patents)Mark Alan DeutschMark Alan Deutsch (9 patents)Karla KoringKarla Koring (7 patents)Todd D FaubionTodd D Faubion (3 patents)Gary V MontgomeryGary V Montgomery (55 patents)Todd E MathesTodd E Mathes (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Rexam Plastics, Inc. (7 from 24 patents)

2. Berry Plastics Corporation (4 from 277 patents)

3. Rexam Medical Packaging Inc. (4 from 44 patents)

4. Rexam Closures and Containers Inc. (3 from 22 patents)

5. Berry Global, Inc. (2 from 110 patents)

6. Rexam Closures (1 from 9 patents)


21 patents:

1. 11912468 - Closure

2. 11628975 - Closure

3. 11040807 - Closure

4. 10689158 - Closure

5. 10207840 - Closure

6. 8245880 - Closure with rotational stop

7. 7828166 - Dispensing closure with child resistant feature

8. 7648051 - Double shell dispensing closure with a reverse tapered drop lug

9. 7635071 - Double shell dispensing closure with a reverse tapered drop lug

10. RE39727 - Double shell dispenser

11. 6854614 - Closure having an improved thread design

12. 6698605 - Modified bottle neck for use with child resistant caps

13. 6543650 - Double shell dispenser

14. D426159 - Safety closure having oversized thumbpads

15. D421389 - Safety closure having a lug window

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as of
1/2/2026
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