Spandrel Establishment

Calculating rank

USPTO Granted Patents = 3

Forward Citations = 29

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4 inventors (with patents filed for the assignee):

Martin P Smith (3 out of 17 patents)

Christopher M Welbourn (2 out of 12 patents)

Andrew D Stewart (1 out of 11 patents)

4. Colin D Saunders (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 5010247 - Method of classifying objects according to shape (1991-04-23),

2. 4663522 - Integrating sphere device for measuring transmission of light in objects (1987-05-05),

3. 4645922 - Integrating sphere arrangement for producing size-corrected color signals (1987-02-24),

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USPTO Data Jan 1 1976 - Nov 3 2026

3 Patents

#30 in Vaduz

#75 in Liechtenstein

Vaduz, Liechtenstein

Spandrel Establishment

Forward Citations = 29

4 inventors:

Martin P Smith (3 out of 17 patents)

Christopher M Welbourn (2 out of 12 patents)

Andrew D Stewart (1 out of 11 patents)

4. Colin D Saunders (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Spandrel Establishment. Retrieved from https://idiyas.com/company/spandrel-establishment

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]