% Expired Patents = 100.0

EPO Patents = 1

Forward Citations = 22

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6 inventors (with patents filed for the assignee):

Michael A Mastropietro (4 out of 5 patents)

Gregory A Jablonski (4 out of 12 patents)

Hiromasa Miyoshi (1 out of 13 patents)

4. Hidefumi Fujita (1 out of 8 patents)

5. Kimitaka Sato (1 out of 28 patents)

6. Christopher J Wargo (1 out of 1 patent)

7. Sato Kimitaka (0 patent)

8. Fujita Hidefumi (0 patent)

9. Miyoshi Hiromasa (0 patent)

10. Mastropietro Michael A A (0 patent)

11. Jablonski Gregory A A (0 patent)

4 patents: Sort by Forward Citations

1. 8673049 - Low-temperature sintered silver nanoparticle composition and electronic articles formed using the same (2014-03-18),

2. 8243271 - Methods for fabricating analytical substrates using metallic nanoparticles (2012-08-14),

3. 7931941 - Synthesis of metallic nanoparticle dispersions capable of sintering at low temperatures (2011-04-26),

4. 7763362 - Shielding based on metallic nanoparticle compositions and devices and methods thereof (2010-07-27),

Company Overview

Pchem Associates, Inc. is a leading provider of chemical consultancy and analytical services. With a team of experienced chemists and state-of-the-art equipment, we offer a range of solutions for industries such as pharmaceuticals, environmental testing, and materials science. Our expertise includes method development, validation, and troubleshooting, as well as regulatory compliance support. Contact us today to learn how we can help you achieve your analytical goals.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

4 Patents

#7 in Bensalem, PA

#2,213 in Pennsylvania

#60,597 in US

Bensalem, PA, United States of America

Pchem Associates, Inc.

Forward Citations = 22

6 inventors:

Michael A Mastropietro (4 out of 5 patents)

Gregory A Jablonski (4 out of 12 patents)

Hiromasa Miyoshi (1 out of 13 patents)

4. Hidefumi Fujita (1 out of 8 patents)

5. Kimitaka Sato (1 out of 28 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Pchem Associates, Inc.. Retrieved from https://idiyas.com/company/pchem-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 (EPO):

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]