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Jersey City, NJ, United States of America

American District Telegraph Company

USPTO Granted Patents = 91

Trademarks = 8

Forward Citations = 1,873

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63 inventors (with patents filed for the assignee):

Aaron A Galvin (29 out of 34 patents)

John K Guscott (20 out of 31 patents)

Hugh D Dyer (13 out of 13 patents)

4. H Patrick Thornton (10 out of 13 patents)

5. Robert B Enemark (7 out of 9 patents)

6. Roy L Harvey (7 out of 7 patents)

7. Angelo A Marsocci (6 out of 6 patents)

8. Robert B Powers (6 out of 7 patents)

9. Kenneth E Beeson (6 out of 6 patents)

10. Frank R Keeler (6 out of 6 patents)

11. James B Edson (5 out of 6 patents)

12. Terence E Gibbs (4 out of 4 patents)

13. L Dennis Shapiro (3 out of 11 patents)

14. Stephen Marchetti (3 out of 3 patents)

15. Hugh P Thornton, Jr (3 out of 3 patents)

Core Competencies:

Intrusion Detection

Smoke Detectors

Access Control Systems

Motion Detectors

Electrical Interconnection

Security Systems

Optical Systems

Ultrasonic Detection

Alarm Systems

Infrared Sensors

Programmable Controllers

Temperature Compensation

91 patents: Sort by Forward Citations

1. 4679881 - Electrical interconnection apparatus and technique (1987-07-14),

2. D289638 - Housing for an electronic push button dialer (1987-05-05),

3. 4647913 - Self-diagnostic ultrasonic intrusion detection system (1987-03-03),

4. 4644484 - Stand-alone access control system clock control (1987-02-17),

5. 4636774 - Variable sensitivity motion detector (1987-01-13),

6. 4634846 - Multimode programmable stand-alone access control system (1987-01-06),

7. 4625199 - Combination intrusion detector system having correlated ultrasonic and (1986-11-25),

8. 4625115 - Ceiling mountable passive infrared intrusion detection system (1986-11-25),

9. 4622540 - Security system status reporting (1986-11-11),

10. 4614968 - Contrast smoke detector (1986-09-30),

11. 4608674 - Constant range ultrasonic motion detector (1986-08-26),

12. 4584485 - Optical block in smoke detectors (1986-04-22),

13. 4546344 - Temperature compensated alarm system (1985-10-08),

14. 4544836 - Optically-based access control system (1985-10-01),

15. 4538138 - Integrated security system having a multiprogrammed controller (1985-08-27),

American District Telegraph Company (ADT) is a leading provider of security and automation solutions for homes and businesses. With over 145 years of experience, ADT offers a range of services including burglar alarms, fire detection, video surveillance, access control, and smart home automation. ADT's advanced technologies and 24/7 monitoring help ensure the safety and peace of mind of millions of customers across the United States and Canada.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

91 Patents

#1 in Jersey City, NJ

#183 in New Jersey

#3,964 in US

#8,204 in the World

Jersey City, NJ, United States of America

American District Telegraph Company

Forward Citations = 1,873

63 inventors:

Aaron A Galvin (29 out of 34 patents)

John K Guscott (20 out of 31 patents)

Hugh D Dyer (13 out of 13 patents)

4. H Patrick Thornton (10 out of 13 patents)

5. Robert B Enemark (7 out of 9 patents)

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