Trademarks = 31

Forward Citations = 83

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3 inventors (with patents filed for the assignee):

Arthur J Holbrook (4 out of 4 patents)

Emmanuel Van Heygen (1 out of 2 patents)

Gaad Shannon (1 out of 1 patent)

6 patents: Sort by Forward Citations

1. 7481183 - Ventilated terrarium (2009-01-27),

2. D306449 - Aquarium air pump (1990-03-06),

3. D268360 - Aquarium heater (1983-03-22),

4. 4333626 - Aquarium heater (1982-06-08),

5. 4313048 - Thermostatically controlled externally mounted electric aquarium heater (1982-01-26),

6. 4160427 - Aquarium waterfall (1979-07-10),

Rolf C. Hagen (USA) Corp. is a leading supplier of pet products and accessories in North America. With a wide range of high-quality products for pets of all kinds, Hagen is dedicated to providing innovative solutions to enhance the lives of pets and their owners. From pet food and grooming supplies to aquariums and reptile habitats, Hagen offers everything pet owners need to care for their beloved animals.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

6 Patents

#18 in Mansfield, MA

#2,472 in Massachusetts

#43,751 in US

Mansfield, MA, United States of America

Rolf C. Hagen (usa) Corp.

Forward Citations = 83

3 inventors:

Arthur J Holbrook (4 out of 4 patents)

Emmanuel Van Heygen (1 out of 2 patents)

Gaad Shannon (1 out of 1 patent)

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