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For the Inventor, By the Inventor

Pittsburgh, PA, United States of America

Indspec Chemical Corporation


USPTO Granted Patents = 33

% Expired Patents = 24.2



Trademarks = 2

Forward Citations = 250

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18 inventors (with patents filed for the assignee):

goldMedal Raj B Durairaj (17 out of 24 patents)

silverMedal Alex Peterson, Jr (8 out of 9 patents)

bronzeMedal Mark A Lawrence (6 out of 22 patents)

4.  Gary A Jesionowski (5 out of 7 patents)

5.  Bojayan Durairaj (5 out of 5 patents)

6.  Ching-Yong Wu (4 out of 4 patents)

7.  Hans Dressler (3 out of 14 patents)

8.  Gideon Salee (2 out of 2 patents)

9.  Richard T Hood (2 out of 3 patents)

10.  Robert M Lamars (2 out of 2 patents)

11.  Theodore Harvey Dailey (1 out of 1 patent)

12.  C Michael Walkup (1 out of 4 patents)

13.  Michael N Tackie (1 out of 3 patents)

14.  Thomas K Volek (1 out of 1 patent)

15.  Vaughn J Romell (1 out of 1 patent)


Core Competencies:
Resorcinol
Rubber Compounds
Flame Retardants
Phenolic Resins
Epoxy Resins
Dihydroperoxide
Isocyanate Compositions
Gel Compositions
Modified Resins
Benzoylresorcinol
Hydroxyalkylation
Dihydroxybenzene

33 patents:

1. 8742033 - Method of stabilizing resorcinol resins and gel compositions made therefrom (2014-06-03),
2. RE42100 - Resorcinolic derivative for rubber compounds (2011-01-31),
3. 7705088 - Resorcinol-blocked isocyanate compositions and their applications (2010-04-27),
4. 7700687 - Resorcinol resin-blocked isocyanates and their applications (2010-04-20),
5. 7439289 - Benzoylresorcinol-based phosphate ester compounds as flame retardants (2008-10-21),
6. 7196156 - Flexibilized resorcinolic novolak resins and method of making same (2007-03-27),
7. 7074861 - Modified resorcinol resins and applications thereof (2006-07-11),
8. 6875807 - Silane-modified phenolic resins and applications thereof (2005-04-05),
9. 6605670 - Resorcinolic derivatives and methods of making and using the same (2003-08-12),
10. 6586607 - Process for making diglycidylether of alkoxylated resorcinol (2003-07-01),
11. 6541551 - Resorcinolic derivative for rubber compounds (2003-04-01),
12. 6531637 - Resorcinol production from the hydrolysis of meta-phenylenediamine (2003-03-11),
13. 6472457 - Nonformaldehyde, nonfuming resorcinolic resins and methods of making and using the same (2002-10-29),
14. 6350921 - Process for the production of a dihydroxybenzene and dicarbinol from diisopropylbenzene (2002-02-26),
15. 6303732 - Diol blends and methods for making and using the same (2001-10-16),
Indspec Chemical Corporation, based in Pittsburgh, PA, specializes in the development and manufacturing of specialty chemicals, particularly phenolic resins and related products. The company serves a diverse range of industries, including coatings, adhesives, and plastics, focusing on innovative solutions that enhance product performance and sustainability. With a commitment to quality and customer service, Indspec leverages advanced research and technology to meet the evolving needs of its global clientele.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

Indspec Chemical Corporation
33 Patents

#74 in Pittsburgh, PA

#372 in Pennsylvania

#10,288 in US

#20,112 in the World

Pittsburgh, PA (US)
Pittsburgh, PA, United States of America

Indspec Chemical Corporation

Forward Citations = 250

18 inventors:

goldMedal Raj B Durairaj (17 out of 24 patents)

silverMedal Alex Peterson, Jr (8 out of 9 patents)

bronzeMedal Mark A Lawrence (6 out of 22 patents)

4.  Gary A Jesionowski (5 out of 7 patents)

5.  Bojayan Durairaj (5 out of 5 patents)

Please report any incorrect information to [email protected]
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