For the Inventor, By the Inventor

Enter assignee name

San Francisco, CA, United States of America

Poppack LLC

USPTO Granted Patents = 20

% Expired Patents = 15.0

CIPO Patents = 2

EPO Patents = 6

Trademarks = 19

Forward Citations = 159

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8 inventors (with patents filed for the assignee):

William Simon Perell (19 out of 22 patents)

Leif B Sorensen (7 out of 7 patents)

Irving S Rappaport (2 out of 28 patents)

4. Erich Eberhardt (1 out of 3 patents)

5. Perry S Keifer (1 out of 1 patent)

6. David Z Dytchkowsky (1 out of 1 patent)

7. Neil S Hayden (1 out of 2 patents)

8. Williams S Perell (1 out of 1 patent)

20 patents: Sort by Forward Citations

1. 12679620 - Easy to open package with controlled dispensing device (2026-07-14),

2. 11724866 - Package with unique opening device and method of producing packages (2023-08-15),

3. 11383909 - Easy to open package with controlled dispensing device (2022-07-12),

4. 11066221 - Package with unique opening device and method for opening package (2021-07-20),

5. 10836518 - Rigid holding container with breachable perimeter bubble (2020-11-17),

6. 10239643 - Rigid holding container with breachable perimeter bubble (2019-03-26),

7. 9981792 - Package for humanitarian efforts with unique reclosing mechanism (2018-05-29),

8. 9802745 - Pour channel with cohesive closure valve and locking bubble (2017-10-31),

9. 9365339 - Package with unique opening device and process for forming package (2016-06-14),

10. 8684601 - Storage apparatus with a breachable flow conduit for discharging a fluid stored therein (2014-04-01),

11. 8590282 - Package with unique opening device and method for opening package (2013-11-26),

12. 8328017 - User inflated breachable container, and method (2012-12-11),

13. 8181818 - Secure container with pressure responsive conduit for closure disruption (2012-05-22),

14. D654790 - Holding container with breachable perimeter bubble (2012-02-28),

15. 7909165 - System for delivering sequential components (2011-03-22),

Poppack LLC, based in San Francisco, CA, specializes in innovative packaging solutions that enhance product protection and sustainability. The company focuses on developing advanced materials and technologies that cater to various industries, including consumer goods and e-commerce. By leveraging cutting-edge design and engineering practices, Poppack aims to address the evolving needs of its clients while promoting environmentally friendly practices in packaging. Their commitment to research and development positions them as a forward-thinking leader in the packaging sector.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

20 Patents

#240 in San Francisco, CA

#3,928 in California

#16,368 in US

#31,196 in the World

San Francisco, CA, United States of America

Poppack LLC

Forward Citations = 159

8 inventors:

William Simon Perell (19 out of 22 patents)

Leif B Sorensen (7 out of 7 patents)

Irving S Rappaport (2 out of 28 patents)

4. Erich Eberhardt (1 out of 3 patents)

5. Perry S Keifer (1 out of 1 patent)

Please report any incorrect information to [email protected]

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