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St. Joseph, MI, United States of America

Leco Corporation

USPTO Granted Patents = 193

CIPO Patents = 2

EPO Patents = 14

Trademarks = 25

Forward Citations = 1,980

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102 inventors (with patents filed for the assignee):

Anatoly N Verenchikov (44 out of 44 patents)

Peter Markel Willis (27 out of 28 patents)

Gordon C Ford (26 out of 27 patents)

4. Viatcheslav Artaev (14 out of 14 patents)

5. Roger L Bredeweg (11 out of 11 patents)

6. Michael C Mason (10 out of 10 patents)

7. Mikhail Yavor (9 out of 17 patents)

8. Larry S O'Brien (9 out of 9 patents)

9. George J Sitek (9 out of 9 patents)

10. Anatoli N Verentchikov (8 out of 9 patents)

11. Ted J Casper (8 out of 8 patents)

12. Joel C Mitchell (8 out of 8 patents)

13. Mark Firmer Merrick (7 out of 7 patents)

14. Mark Russell Wheeler (7 out of 7 patents)

15. Julie R Pitz (7 out of 7 patents)

Core Competencies:

Gas Chromatography

Mass Spectrometry

Thermal Modulator

Multi-Dimensional Chromatography

Ion Trap Mass Spectrometer

Electrostatic Trap Mass Spectrometer

Time-of-Flight Mass Spectrometer

Combustion Tube

Chromatography System

Imaging Mass Spectrometer

Molar Transfer Device

Multi-Reflecting Mass Spectrometer

193 patents: Sort by Forward Citations

1. 12442803 - Flow splitter for gas chromatography systems (2025-10-14),

2. 12140576 - Multi-dimensional chromatography modulator with variable modulation period (2024-11-12),

3. 12100584 - Methods and systems for multi-pass encoded frequency pushing (2024-09-24),

4. 12025595 - Thermal modulator (2024-07-02),

5. 11994501 - Method for ranking library hits in mass spectrometry (2024-05-28),

6. 11899033 - Access port for a thermogravimetric analyzer furnace (2024-02-13),

7. 11899032 - Molar transfer device (2024-02-13),

8. 11846614 - Thermal modulator (2023-12-19),

9. 11742192 - Electrostatic trap mass spectrometer with improved ion injection (2023-08-29),

10. 11726010 - Rotary dosing device (2023-08-15),

11. 11609212 - Chromatography system (2023-03-21),

12. 11397139 - Metallographic grinder and components thereof (2022-07-26),

13. 11391706 - Chromatography system (2022-07-19),

14. 11328919 - Two-stage ion source comprising closed and open ion volumes (2022-05-10),

15. 11328916 - User defined scaled mass defect plot with filtering and labeling (2022-05-10),

Leco Corporation is a global leader in designing, manufacturing, and distributing innovative laboratory and scientific equipment. With over 85 years of experience, Leco Corporation provides high-quality instruments and solutions for industries such as environmental, energy, metals, and materials testing. Their product range includes elemental analyzers, spectrometers, mass spectrometers, thermal analysis equipment, and more. Leco Corporation is committed to delivering accurate, reliable, and efficient solutions to help customers meet their analytical challenges.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

193 Patents

#1 in St. Joseph, MI

#88 in Michigan

#2,057 in US

#4,238 in the World

St. Joseph, MI, United States of America

Leco Corporation

Forward Citations = 1,980

102 inventors:

Anatoly N Verenchikov (44 out of 44 patents)

Peter Markel Willis (27 out of 28 patents)

Gordon C Ford (26 out of 27 patents)

4. Viatcheslav Artaev (14 out of 14 patents)

5. Roger L Bredeweg (11 out of 11 patents)

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