% Expired Patents = 25.0

Forward Citations = 16

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5 inventors (with patents filed for the assignee):

Roger F Marsh (3 out of 6 patents)

Dan Ertl (2 out of 4 patents)

J Kevin Harris (1 out of 2 patents)

4. John D Ritchison (1 out of 4 patents)

5. Patricia M Marsh (1 out of 5 patents)

4 patents: Sort by Forward Citations

1. 10024052 - Mechanically secured block assembly systems (2018-07-17),

2. 9938713 - Mechanically secured block building system having a pipe opening therethrough (2018-04-10),

3. 9328501 - Use devices for mechanically secured block assembly systems (2016-05-03),

4. 9206597 - Unitized post tension block system for masonry structures (2015-12-08),

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Profile summary based on public USPTO records.