% Expired Patents = 66.7

CIPO Patents = 1

Forward Citations = 317

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6 inventors (with patents filed for the assignee):

Edward William Sheehan (10 out of 26 patents)

Ross Clark Willoughby (10 out of 33 patents)

Craig M Whitehouse (4 out of 87 patents)

4. Thomas P White (3 out of 15 patents)

5. Ed Sheehan (1 out of 1 patent)

6. Ross Clark Willougbhy (1 out of 1 patent)

12 patents: Sort by Forward Citations

1. 9299553 - Atmospheric pressure ion source for mass spectrometry (2016-03-29),

2. 8723110 - Atmospheric pressure ion source for mass spectrometry (2014-05-13),

3. 8178833 - High-flow tube for sampling ions from an atmospheric pressure ion source (2012-05-15),

4. 8080783 - Atmospheric pressure ion source for mass spectrometry (2011-12-20),

5. 7960711 - Field-free electrospray nebulizer (2011-06-14),

6. 7816646 - Laser desorption ion source (2010-10-19),

7. 7312444 - Atmosperic pressure quadrupole analyzer (2007-12-25),

8. 7253406 - Remote reagent chemical ionization source (2007-08-07),

9. 7095019 - Remote reagent chemical ionization source (2006-08-22),

10. 7060976 - Ion enrichment aperture arrays (2006-06-13),

11. 6147345 - Method and apparatus for increased electrospray ion production (2000-11-14),

12. 5838002 - Method and apparatus for improved electrospray analysis (1998-11-17),

Company Overview

Chem-Space Associates, Inc. is a specialized organization based in Pittsburgh, PA, focusing on the development and manufacturing of advanced chemical products and solutions. The company is engaged in various sectors, including pharmaceuticals, materials science, and specialty chemicals, leveraging innovative research to address complex challenges in these fields. With a commitment to quality and sustainability, Chem-Space aims to deliver cutting-edge technologies that enhance performance and efficiency across diverse applications.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

12 Patents

#166 in Pittsburgh, PA

#930 in Pennsylvania

#25,557 in US

#48,163 in the World

Pittsburgh, PA, United States of America

Chem-Space Associates, Inc.

Forward Citations = 317

6 inventors:

Edward William Sheehan (10 out of 26 patents)

Ross Clark Willoughby (10 out of 33 patents)

Craig M Whitehouse (4 out of 87 patents)

4. Thomas P White (3 out of 15 patents)

5. Ed Sheehan (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Chem-Space Associates, Inc.. Retrieved from https://idiyas.com/company/chem-space-associates

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]

1 patent (CIPO):

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]