% Expired Patents = 20.0

CIPO Patents = 3

EPO Patents = 2

Forward Citations = 83

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3 inventors (with patents filed for the assignee):

Michael Edward Shannon (4 out of 5 patents)

Dick Eric Zoutman (4 out of 5 patents)

Gerard V Sunnen (1 out of 3 patents)

5 patents: Sort by Forward Citations

1. 9616144 - Food-handling facility disinfection treatment (2017-04-11),

2. 8992829 - Sports equipment and facility disinfection (2015-03-31),

3. 8636951 - Bio-terrorism counteraction using ozone and hydrogen peroxide (2014-01-28),

4. 8551399 - Healthcare facility disinfecting system (2013-10-08),

5. 6073627 - Apparatus for the application of ozone/oxygen for the treatment of (2000-06-13),

Company Overview

Medizone International Inc. is focused on developing and commercializing AsepticSure, a hospital grade disinfectant system to improve infection control in healthcare facilities. The company's patented technology utilizes ozone gas to provide a safe and effective method for killing bacteria, viruses, and other pathogens. Medizone International is dedicated to helping healthcare providers enhance safety and reduce the risk of infection transmission in patient care environments.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

5 Patents

#1 in Stinson Beach, CA

#12,073 in California

#51,644 in US

Stinson Beach, CA, United States of America

Medizone International Inc.

Forward Citations = 83

3 inventors:

Michael Edward Shannon (4 out of 5 patents)

Dick Eric Zoutman (4 out of 5 patents)

Gerard V Sunnen (1 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Medizone International Inc.. Retrieved from https://idiyas.com/company/medizone-international

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]

3 patents (CIPO):

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]

2 patents (EPO):

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]