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Merrimack, NH, United States of America

Gtat Corporation

USPTO Granted Patents = 72

% Expired Patents = 44.4

EPO Patents = 10

Trademarks = 4

Forward Citations = 112

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102 inventors (with patents filed for the assignee):

Gopal Prabhu (12 out of 20 patents)

Christopher John Petti (11 out of 164 patents)

Andriy M Andrukhiv (10 out of 10 patents)

4. Venkatesan Murali (10 out of 50 patents)

5. Roman V Drachev (9 out of 9 patents)

6. David S Lyttle (9 out of 9 patents)

7. Theodore H Smick (9 out of 50 patents)

8. Geoffrey Ryding (7 out of 56 patents)

9. Arvind Chari (6 out of 8 patents)

10. Robert Brainard (6 out of 13 patents)

11. Parthasarathy Santhanaraghavan (6 out of 6 patents)

12. S Brad Herner (6 out of 95 patents)

13. David Tanner (5 out of 42 patents)

14. Steve E Babayan (5 out of 9 patents)

15. Carl Chartier (5 out of 7 patents)

Core Competencies:

Silicon Carbide

Crystal Growth

Photovoltaic Cell

CVD Reactor

Trichlorosilane

Sapphire Cover Plate

Ion Implantation

Thermal Management

Polysilicon

Temperature Control

Semiconductors

Gas Distribution

72 patents: Sort by Forward Citations

1. 11591714 - Apparatus for producing bulk silicon carbide (2023-02-28),

2. 11505876 - Method for producing bulk silicon carbide (2022-11-22),

3. 11434582 - Method for producing bulk silicon carbide by sublimation of a silicon carbide precursor prepared from silicon and carbon particles or particulate silicon carbide (2022-09-06),

4. 11421343 - Method and apparatus for producing bulk silicon carbide using a silicon carbide seed (2022-08-23),

5. 11174567 - Method of automatically measuring seed melt back of crystalline material (2021-11-16),

6. 10851473 - Apparatus for producing bulk silicon carbide (2020-12-01),

7. 10801126 - Method for producing bulk silicon carbide (2020-10-13),

8. 10793971 - Method and apparatus for producing bulk silicon carbide using a silicon carbide seed (2020-10-06),

9. 10633762 - Method for producing bulk silicon carbide by sublimation of a silicon carbide precursor prepared from silicon and carbon particles or particulate silicon carbide (2020-04-28),

10. 10633759 - Technique for controlling temperature uniformity in crystal growth apparatus (2020-04-28),

11. 10494733 - Method of automatically measuring seed melt back of crystalline material (2019-12-03),

12. 10450649 - Reactor filament assembly with enhanced misalignment tolerance (2019-10-22),

13. 10315181 - Heater and related methods therefor (2019-06-11),

14. 10209405 - Mobile electronic device cover plate comprising a thin sapphire layer (2019-02-19),

15. 9982361 - Liquid-cooled heat exchanger (2018-05-29),

Company Overview

GTAT Corporation, based in Merrimack, NH, specializes in the production of advanced silicon carbide materials and technologies. The company focuses on crystal growth processes and the development of CVD reactors, which are essential for manufacturing high-quality silicon carbide substrates. GTAT's innovations extend to applications in photovoltaic cells, thermal management solutions, and ion implantation systems. Their expertise in trichlorosilane and sapphire cover plates positions them as a key player in the semiconductor and renewable energy sectors.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

72 Patents

#2 in Merrimack, NH

#38 in New Hampshire

#5,106 in US

#10,392 in the World

Merrimack, NH, United States of America

Gtat Corporation

Forward Citations = 112

102 inventors:

Gopal Prabhu (12 out of 20 patents)

Christopher John Petti (11 out of 164 patents)

Andriy M Andrukhiv (10 out of 10 patents)

4. Venkatesan Murali (10 out of 50 patents)

5. Roman V Drachev (9 out of 9 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Gtat Corporation. Retrieved from https://idiyas.com/company/gtat

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]

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