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Fishkill, NY, United States of America

Charles M McKenna

This inventor holds 8 USPTO granted patents. Top assignee: International Business Machines Corporation. Active years: 1978-1983.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Charles M McKenna. Retrieved from https://idiyas.com/inventor/charles-m-mckenna-7mw8eelo

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank

USPTO Granted Patents = 8

% Patents Active = 100.0

Average Co-Inventor Count = 2.6

ph-index = 7

Forward Citations = 192(Granted Patents)

Company Filing History:

8 out of 166,409

International Business Machines Corporation

Years Active: 1978-1983

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8 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4383177 - Multipole implantation-isotope separation ion beam source (1983-05-10),

2. 4183780 - Photon enhanced reactive ion etching (1980-01-15),

3. 4179312 - Formation of epitaxial layers doped with conductivity-determining (1979-12-18),

4. 4158589 - Negative ion extractor for a plasma etching apparatus (1979-06-19),

5. 4151420 - Apparatus for the formation of epitaxial layers doped with (1979-04-24),

6. 4149084 - Apparatus for maintaining ion bombardment beam under improved vacuum (1979-04-10),

7. 4135097 - Ion implantation apparatus for controlling the surface potential of a (1979-01-16),

8. 4118630 - Ion implantation apparatus with a cooled structure controlling the (1978-10-03),

Profile summary based on public USPTO records.

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]

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