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For the Inventor, By the Inventor

Pittsburgh, PA, United States of America

Calgon Corporation


USPTO Granted Patents = 312



Trademarks = 12

Forward Citations = 5,215

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187 inventors (with patents filed for the assignee):

goldMedal Jasbir S Gill (21 out of 22 patents)

silverMedal Wood E Hunter (19 out of 19 patents)

bronzeMedal Gary F Matz (18 out of 26 patents)

4.  Shih-Ruey Tom Chen (17 out of 39 patents)

5.  Bennett P Boffardi (16 out of 17 patents)

6.  Fred David Martin (15 out of 16 patents)

7.  Rabindra K Sinha (12 out of 16 patents)

8.  Denis E Hassick (11 out of 12 patents)

9.  Daniel P Vanderpool (11 out of 11 patents)

10.  Sally Lee Adams (11 out of 11 patents)

11.  Jerry L Walker (10 out of 10 patents)

12.  Paul A Rey (10 out of 11 patents)

13.  Raymond J Schaper (10 out of 10 patents)

14.  Lewis D Morse (9 out of 13 patents)

15.  Joseph Peter Miknevich (8 out of 16 patents)


Core Competencies:
Water Soluble Polymers
Ampholyte Polymers
Inorganic Compositions
Antimicrobial Agents
Rust Removal
Emulsion Feed Assembly
Scale Control
Modified Starch Solutions
Chemical Delivery Systems
Creping Adhesives
Surfactants
Mannich Derivatives

312 patents:

1. 6691715 - Water soluble polymer composition and method of use (2004-02-17),
2. 6656377 - Inorganic composition, process of preparation and method of use (2003-12-02),
3. 6562194 - Method of creping paper webs (2003-05-13),
4. 6482776 - Ampholyte polymer composition and method of use (2002-11-19),
5. 6414080 - Inverse emulsion polymer and production thereof (2002-07-02),
6. 6365140 - Modified starch solutions and their use in personal care (2002-04-02),
7. 6361801 - Alkyl allyl amines and low voc hair styling compositions using same (2002-03-26),
8. 6346554 - ASA size emulsification with a natural gum for paper products (2002-02-12),
9. 6315910 - Method for controlling snails using dialkyl diallyl ammonium polymers (2001-11-13),
10. 6313198 - Emulsion feed assembly and method (2001-11-06),
11. 6310024 - Rust and scale removal composition and process (2001-10-30),
12. 6277242 - Creping adhesive containing an admixture of PAE resins (2001-08-21),
13. 6248182 - Mannich derivatives of epoxy-novolac resins and methods of using the same (2001-06-19),
14. 6184257 - Composition of ferric chloride and a dialkyl diallyl ammonium polymer and process of preparing the same (2001-02-06),
15. 6139830 - Methods for reducing deposit formation on surfaces (2000-10-31),
Calgon Corporation, based in Pittsburgh, PA, specializes in the development and manufacturing of advanced polymer compositions. The company focuses on a range of technologies including water-soluble polymers, ampholyte polymers, and inorganic compositions. Its expertise extends to antimicrobial agents, rust removal solutions, and scale control technologies. Calgon Corporation is dedicated to providing innovative solutions that address various industrial challenges, particularly in water treatment and environmental applications.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

Calgon Corporation
312 Patents

#12 in Pittsburgh, PA

#59 in Pennsylvania

#1,401 in US

#2,865 in the World

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

Calgon Corporation

Forward Citations = 5,215

187 inventors:

goldMedal Jasbir S Gill (21 out of 22 patents)

silverMedal Wood E Hunter (19 out of 19 patents)

bronzeMedal Gary F Matz (18 out of 26 patents)

4.  Shih-Ruey Tom Chen (17 out of 39 patents)

5.  Bennett P Boffardi (16 out of 17 patents)

Please report any incorrect information to [email protected]
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