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For the Inventor, By the Inventor

Twinsburg, OH, United States of America

Weatherchem Corporation

Calculating rank
USPTO Granted Patents = 62

% Expired Patents = 3.2


Trademarks = 10

Forward Citations = 2,947

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33 inventors (with patents filed for the assignee):

goldMedal Barry Michael Daggett (19 out of 23 patents)

silverMedal Brian David Groubert (15 out of 15 patents)

bronzeMedal Michael J Forsyth (12 out of 13 patents)

4.  Anna Frolova-Levi (8 out of 8 patents)

5.  Douglas S Martin (7 out of 16 patents)

6.  Lewis L Otterson (5 out of 5 patents)

7.  Joel W Wennerstrom (4 out of 8 patents)

8.  Ovidiu Opresco (4 out of 7 patents)

9.  David C Baxter (3 out of 3 patents)

10.  Craig C Weidman (3 out of 9 patents)

11.  Charles Tecco (3 out of 3 patents)

12.  John R Hickman (3 out of 3 patents)

13.  Bruno A Mediate (2 out of 3 patents)

14.  Patricia A Bittel (2 out of 2 patents)

15.  Lawrence E Lasich (2 out of 2 patents)


Core Competencies:
Dispensing Closure
Child-Resistant Cap
Sift-Resistant Design
Tamper-Evident Mechanism
Liquid Dispensing Cap
Pliable Sealing Surface
Dual Hinge Closure
Moisture-Resistant Top
Reclosable Closure
One-Piece Closure
Rotor-Type Dispenser
Injection Molding Machine

62 patents:

1. 11548699 - Sift-resistant dispensing closure (2023-01-10),
2. 10589909 - Sift-resistant dispensing closure (2020-03-17),
3. 10421597 - Pill shelf flip cap closure (2019-09-24),
4. 10173811 - Dual hinge flip cap closure (2019-01-08),
5. 9371162 - One-piece dispensing closure (2016-06-21),
6. 9327883 - Full open disk dispensing closure (2016-05-03),
7. 9321567 - Closure with tamper evident push-pull tether (2016-04-26),
8. D731303 - One-piece container with lid (2015-06-09),
9. 8833584 - Closure with utensil retention mechanism (2014-09-16),
10. 8720748 - Full open disk dispensing closure (2014-05-13),
11. 8550313 - Sift-resistant dispensing closure (2013-10-08),
12. 8448798 - Dispensing closure with pliable sealing surface (2013-05-28),
13. D634198 - Dispensing closure for pourable material (2011-03-15),
14. D628893 - Dispensing closure (2010-12-14),
15. D628892 - Dispensing closure (2010-12-14),
Company Overview
Weatherchem Corporation, based in Twinsburg, Ohio, specializes in the design and manufacture of innovative dispensing closures. The company focuses on developing advanced solutions such as child-resistant caps, sift-resistant designs, and tamper-evident mechanisms. Their product offerings include liquid dispensing caps and closures featuring pliable sealing surfaces and dual hinge designs, ensuring moisture resistance and user safety. Weatherchem's commitment to quality and innovation positions it as a leader in the dispensing closure industry.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

62 Patents

#3 in Twinsburg, OH

#263 in Ohio

#5,849 in US

#11,782 in the World

Twinsburg, OH (US)
Twinsburg, OH, United States of America

Weatherchem Corporation

Forward Citations = 2,947

33 inventors:

goldMedal Barry Michael Daggett (19 out of 23 patents)

silverMedal Brian David Groubert (15 out of 15 patents)

bronzeMedal Michael J Forsyth (12 out of 13 patents)

4.  Anna Frolova-Levi (8 out of 8 patents)

5.  Douglas S Martin (7 out of 16 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Weatherchem Corporation. Retrieved from https://idiyas.com/company/weatherchem

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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