Drexelbrook Engineering Company

Calculating rank

USPTO Granted Patents = 8

Forward Citations = 122

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5 inventors (with patents filed for the assignee):

Frederick L Maltby (4 out of 26 patents)

L Jonathan Kramer (4 out of 16 patents)

David M Stern (3 out of 5 patents)

4. Glen Mitchell (2 out of 2 patents)

5. Evan Cost (1 out of 1 patent)

8 patents: Sort by Forward Citations

1. 5987994 - Ultrasonic method for material monitoring (1999-11-23),

2. 5760309 - Ultrasonic method for material monitoring (1998-06-02),

3. 5307678 - Material level probe having crimp seal (1994-05-03),

4. 5049878 - Two-wire compensated level measuring instrument (1991-09-17),

5. 4851831 - Two-wire level measuring instrument (1989-07-25),

6. 4573040 - Fail-safe instrument system (1986-02-25),

7. 4485673 - Two-wire level measuring instrument (1984-12-04),

8. 4363030 - Fail-safe instrument system (1982-12-07),

Company Overview

Drexelbrook Engineering Company is a leading provider of level measurement solutions for industrial applications. With over 60 years of experience, we offer a wide range of products including level sensors, transmitters, and switches for liquid and solid materials. Our innovative technologies are trusted by industries such as oil and gas, chemical, water and wastewater, and food and beverage. At Drexelbrook, we are committed to delivering high-quality products and exceptional customer service to meet our clients' unique needs.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Nov 3 2026

8 Patents

#18 in Horsham, PA

#1,306 in Pennsylvania

#35,985 in US

Horsham, PA, United States of America