% Expired Patents = 33.3

CIPO Patents = 1

Forward Citations = 31

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2 inventors (with patents filed for the assignee):

Richard W O'Brien (3 out of 3 patents)

David W Cannon (1 out of 3 patents)

Richard Wyndham O'brien (0 patent)

3 patents: Sort by Forward Citations

1. 6898978 - Geometry for pulsed acoustic measurements of particle size (2005-05-31),

2. 5616872 - Particle size and charge measurement in multi-component colloids (1997-04-01),

3. 5059909 - Determination of particle size and electrical charge (1991-10-22),

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USPTO Data Jan 1 1976 - Oct 13 2026

3 Patents

#9 in Eveleigh

#1,414 in Australia

Eveleigh, Australia

Colloidal Dynamics Pty Ltd.

Forward Citations = 31

2 inventors:

Richard W O'Brien (3 out of 3 patents)

David W Cannon (1 out of 3 patents)

Richard Wyndham O'brien (0 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Colloidal Dynamics Pty Ltd.. Retrieved from https://idiyas.com/company/colloidal-dynamics-pty

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]

1 patent (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]