Philadelphia, PA, United States of America

Engelhard/icc

Calculating rank

USPTO Granted Patents = 11

Forward Citations = 654

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6 inventors (with patents filed for the assignee):

Dean S Calton (9 out of 9 patents)

James A Coellner (8 out of 10 patents)

Henry Y Mark (3 out of 17 patents)

4. Paul R Heimann (2 out of 2 patents)

5. Douglas C Scott (2 out of 3 patents)

6. James A Heywood (1 out of 1 patent)

11 patents: Sort by Forward Citations

1. 5749230 - Method for creating a humidity gradient within an air conditioned zone (1998-05-12),

2. 5655380 - Step function inverter system (1997-08-12),

3. 5649428 - Hybrid air-conditioning system with improved recovery evaporator and (1997-07-22),

4. 5632954 - Method for killing microorganisms (1997-05-27),

5. 5595238 - Rotatably supported regenerative fluid treatment wheel assemblies (1997-01-21),

6. 5579647 - Desiccant assisted dehumidification and cooling system (1996-12-03),

7. 5564281 - Method of operating hybrid air-conditioning system with fast condensing (1996-10-15),

8. 5551245 - Hybrid air-conditioning system and method of operating the same (1996-09-03),

9. 5517828 - Hybrid air-conditioning system and method of operating the same (1996-05-21),

10. 5450730 - Method and apparatus for creating humidity gradients (1995-09-19),

11. 5448895 - Hybrid heat pump and desiccant space conditioning system and control (1995-09-12),

Company Overview

Engelhard/icc, based in Philadelphia, PA, specializes in advanced materials and technologies, focusing on the development and manufacturing of catalysts, specialty chemicals, and engineered materials. The company is recognized for its innovative solutions that enhance performance across various industries, including automotive, electronics, and environmental applications. Engelhard/icc is committed to research and development, driving advancements in sustainable technologies and improving efficiency in manufacturing processes.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Nov 10 2026

11 Patents

#90 in Philadelphia, PA

#998 in Pennsylvania

#27,594 in US

#51,930 in the World

Philadelphia, PA, United States of America

Engelhard/icc

Forward Citations = 654

6 inventors:

Dean S Calton (9 out of 9 patents)

James A Coellner (8 out of 10 patents)

Henry Y Mark (3 out of 17 patents)

4. Paul R Heimann (2 out of 2 patents)

5. Douglas C Scott (2 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Engelhard/icc. Retrieved from https://idiyas.com/company/engelhard-icc

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]