For the Inventor, By the Inventor

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Westminster, MA, United States of America

Simplex Time Recorder Co.

USPTO Granted Patents = 52

Trademarks = 10

Forward Citations = 1,053

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52 inventors (with patents filed for the assignee):

Lawrence G Stanley (12 out of 18 patents)

Charles B Winterble (8 out of 8 patents)

Wayne A Nelson (8 out of 8 patents)

4. Timothy C Repp (7 out of 9 patents)

5. Anthony J Capowski (4 out of 16 patents)

6. Paul H Maier, Jr (4 out of 16 patents)

7. Mark Philias Barrieau (4 out of 21 patents)

8. Walter P Gauthier (4 out of 4 patents)

9. Lawrence J Feroli (3 out of 22 patents)

10. Robert B Staubitz (3 out of 36 patents)

11. Gunther Trischler (3 out of 3 patents)

12. Erich Willmann (3 out of 4 patents)

13. George Franke (3 out of 3 patents)

14. Dana L Vickery (3 out of 3 patents)

15. Glenn L Sindledecker (2 out of 11 patents)

Core Competencies:

Fire Control Panel

Alarm System

Fiber-Sync Communications

Early Fire Detection

Programmable Time Recorder

Redundant Video Monitoring

Smoke Detector

Emergency Strobe Light

Synchronized Strobe Alarm

Voltage Control

Time Registration Device

Digital Clock

52 patents: Sort by Forward Citations

1. 6567001 - Fire control panel monitoring for degradation of wiring integrity during alarm state (2003-05-20),

2. 6313744 - Alarm system with individual alarm indicator testing (2001-11-06),

3. 6281789 - Alarm system having improved control of notification appliances over common power lines (2001-08-28),

4. 6265971 - Fiber-sync communications channel (2001-07-24),

5. 6195011 - Early fire detection using temperature and smoke sensing (2001-02-27),

6. 6061303 - Programmable time recorder (2000-05-09),

7. 6038289 - Redundant video alarm monitoring system (2000-03-14),

8. 6034601 - Method and apparatus for determining proper installation of alarm devices (2000-03-07),

9. 6033245 - Self-aligning electrical connector (2000-03-07),

10. 5990915 - Time recorder with code reader and data storage (1999-11-23),

11. 5966002 - Method and apparatus for adapting voltage control in alarm systems (1999-10-12),

12. 5886620 - Building alarm system with synchronized strobes (1999-03-23),

13. 5865527 - Emergency strobe light (1999-02-02),

14. 5862201 - Redundant alarm monitoring system (1999-01-19),

15. 5818334 - Addressable devices with interface modules having electrically readable (1998-10-06),

Simplex Time Recorder Co. is a leading provider of biometric and time management solutions. With over 100 years of experience, Simplex offers a wide range of time clock systems, fingerprint readers, and workforce management software. Our solutions are designed to streamline employee attendance tracking, eliminate time theft, and increase overall productivity. Visit our website to learn more about our innovative products and services.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

52 Patents

#2 in Westminster, MA

#374 in Massachusetts

#6,537 in US

#13,143 in the World

Westminster, MA, United States of America

Simplex Time Recorder Co.

Forward Citations = 1,053

52 inventors:

Lawrence G Stanley (12 out of 18 patents)

Charles B Winterble (8 out of 8 patents)

Wayne A Nelson (8 out of 8 patents)

4. Timothy C Repp (7 out of 9 patents)

5. Anthony J Capowski (4 out of 16 patents)

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