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For the Inventor, By the Inventor

Huddersfield, United Kingdom

Steven Michael Partington

This inventor holds 4 USPTO granted patents and 1 EPO patent. Top assignee: James Robinson Limited. Active years: 2001-2002.

USPTO Granted Patents = 4

% Patents Active = 75.0


Average Co-Inventor Count = 6.0

ph-index = 3

Forward Citations = 49(Granted Patents)


Company Filing History:

goldMedal4 out of 4 
 
James Robinson Limited
 patents

Years Active: 2001-2002

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4 patents (USPTO):Explore Patents
1. 6387512 - Grey coloring photochromic fused pyrans (2002-05-14),
2. 6303673 - Photochromic compounds (2001-10-16),
3. 6294112 - Red coloring hyperchromic 3H-naphtho[2,1-B]pyrans (2001-09-25),
4. 6248264 - Neutral coloring photochromic 2H-naphtho[1,2-b] pyrans and heterocyclic pyrans (2001-06-19),
Profile summary based on public USPTO records.
Please report any incorrect information to [email protected]
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