CIPO Patents = 1

EPO Patents = 1

Forward Citations = 63

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2 inventors (with patents filed for the assignee):

John D Porter (4 out of 37 patents)

Allen Estes (1 out of 2 patents)

4 patents: Sort by Forward Citations

1. 10065775 - Dispensing cap for a container (2018-09-04),

2. 8613372 - Dispensing cap for a container (2013-12-24),

3. 8453834 - Apparatus for internal mixture of substances (2013-06-04),

4. 8453833 - Apparatus for internal mixture of substances (2013-06-04),

Granite State Product Development LLC is a leading product development company specializing in design, engineering, and manufacturing services. With a focus on innovation and quality, we help businesses bring their ideas to life and turn them into successful products. Our team of experts offers a full range of services to support clients throughout the product development process, from concept to production.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

4 Patents

#111 in Dover, DE

#856 in Delaware

#60,561 in US

Dover, DE, United States of America

Granite State Product Development LLC

Forward Citations = 63

2 inventors:

John D Porter (4 out of 37 patents)

Allen Estes (1 out of 2 patents)

Please report any incorrect information to [email protected]

1 patent (CIPO):

Please report any incorrect information to [email protected]

1 patent (EPO):

Please report any incorrect information to [email protected]