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For the Inventor, By the Inventor

Aberdeen, United Kingdom

Garry R Stephen

This inventor holds 4 USPTO granted patents. Top assignees: Abb Vetco Gray Incorporated, Vetco Gray Inc.. Active years: 1991-1994.

USPTO Granted Patents = 4

% Patents Active = 100.0

Average Co-Inventor Count = 2.4

ph-index = 4

Forward Citations = 72(Granted Patents)


Company Filing History:

goldMedal3 out of 188 
 
Abb Vetco Gray Incorporated
 patents
silverMedal1 out of 453 
 
Vetco Gray Inc.
 patents

Years Active: 1991-1994

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4 patents (USPTO):Explore Patents
1. 5327965 - Wellhead completion system (1994-07-12),
2. 5240076 - Casing tension retainer (1993-08-31),
3. 5226484 - Emergency casing support using standard casing hanger (1993-07-13),
4. 5002131 - Casing tensioning mechanism for a casing hanger (1991-03-26),
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