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For the Inventor, By the Inventor

Gloucester, United Kingdom

Rockatek Limited

Calculating rank
USPTO Granted Patents = 4


Forward Citations = 1

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3 inventors (with patents filed for the assignee):

goldMedal Daniel Brendan Crowley (4 out of 12 patents)

silverMedal Robert Donald John Sedgeman (4 out of 8 patents)

bronzeMedal Robert Sedgeman (1 patent)


4 patents:

1. 12781576 - High frequency torsional oscillation mitigation tool (2026-11-03),
2. 12497844 - High frequency torsional oscillation mitigation tool (2025-12-16),
3. 12345157 - Piston and cylinder assembly of a downhole tool, downhole tool with a piston and cylinder assembly, and method of assembling the piston and cylinder (2025-07-01),
4. 11993985 - Downhole assembly to mitigate high frequency torsional oscillation, and oscillation mitigation tool suitable for use in a downhole assembly (2024-05-28),
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USPTO Data Jan 1 1976 - Nov 3 2026

4 Patents

#16 in Gloucester

#3,876 in United Kingdom

Gloucester, GB
Gloucester, United Kingdom

Rockatek Limited

Forward Citations = 1

3 inventors:

goldMedal Daniel Brendan Crowley (4 out of 12 patents)

silverMedal Robert Donald John Sedgeman (4 out of 8 patents)

bronzeMedal Robert Sedgeman (1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Rockatek Limited. Retrieved from https://idiyas.com/company/rockatek

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]
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