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For the Inventor, By the Inventor

Cranberry Township, PA, United States of America

Mine Safety Appliances Company


USPTO Granted Patents = 242



Trademarks = 113

Forward Citations = 5,122

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266 inventors (with patents filed for the assignee):

goldMedal Robert Edward Klotz (17 out of 24 patents)

silverMedal Rebecca Kreke (15 out of 16 patents)

bronzeMedal Mark Hall (15 out of 15 patents)

4.  Towner Bennett Scheffler (14 out of 28 patents)

5.  Layton A Wise (14 out of 14 patents)

6.  Joseph D Jolson (11 out of 11 patents)

7.  Glenn H Fertig, Sr (11 out of 11 patents)

8.  Alan A Schneider (10 out of 23 patents)

9.  Clayton J Bossart (8 out of 8 patents)

10.  William Vernon Hough (8 out of 8 patents)

11.  F Joseph Hersick (7 out of 8 patents)

12.  Elizabeth R Burkhardt (7 out of 13 patents)

13.  Brian Keith Davis (6 out of 22 patents)

14.  James A Hendrickson (6 out of 8 patents)

15.  Thomas M Salapow (6 out of 6 patents)


Core Competencies:
Lifeline Systems
Electrochemical Sensors
Protective Helmets
Gas Sensors
Body Armor
Breathing Apparatus
Photoacoustic Sensors
Chin Guards
Protective Padding
Sensor Housing Systems
Release Mechanisms
Ballistic Resistant Devices

242 patents:

1. 8869934 - Method, apparatus, and arrangement for a lifeline system (2014-10-28),
2. 8702935 - Electrochemical sensors including electrodes with diffusion barriers (2014-04-22),
3. 8661896 - Protective enclosure for use with a sensor for detecting an analyte (2014-03-04),
4. 8617364 - Sensors and sensor housing systems (2013-12-31),
5. 8539613 - Protective helmet (2013-09-24),
6. 8522418 - Protective helmets and method of manufacture thereof (2013-09-03),
7. 8469147 - Chest strap arrangement for an attachable arrangement (2013-06-25),
8. 8464362 - Protective helmets and method of manufacture thereof (2013-06-18),
9. D683501 - Visor frame (2013-05-28),
10. D683078 - Visor (2013-05-21),
11. D683077 - Visor interface (2013-05-21),
12. D677435 - Visor (2013-03-05),
13. D677008 - Visor (2013-02-26),
14. D675788 - Visor (2013-02-05),
15. D675787 - Visor (2013-02-05),
Mine Safety Appliances Company (MSA) is a global leader in the development, manufacture, and supply of products and services for the safety and protection of workers in various industries. With over a century of experience, MSA offers an extensive range of safety solutions including personal protective equipment, gas detection systems, and fall protection devices. Their mission is to enhance worker safety and well-being by providing innovative and reliable safety solutions.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

242 Patents

#2 in Cranberry Township, PA

#65 in Pennsylvania

#1,677 in US

#3,452 in the World

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Cranberry Township, PA, United States of America

Mine Safety Appliances Company

Forward Citations = 5,122

266 inventors:

goldMedal Robert Edward Klotz (17 out of 24 patents)

silverMedal Rebecca Kreke (15 out of 16 patents)

bronzeMedal Mark Hall (15 out of 15 patents)

4.  Towner Bennett Scheffler (14 out of 28 patents)

5.  Layton A Wise (14 out of 14 patents)

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