Enter assignee name

Forward Citations = 222

Loading Chart...

6 inventors (with patents filed for the assignee):

R Lee Roberts (7 out of 65 patents)

Douglas H Eden (4 out of 5 patents)

Robert L Roberts (4 out of 9 patents)

4. Annabelle Kim (3 out of 3 patents)

5. Donald J MacKay (1 out of 1 patent)

6. Andrew S Taylor (1 out of 2 patents)

11 patents: Sort by Forward Citations

1. 5534202 - Air grid for underdrains and similar systems (1996-07-09),

2. 5413710 - Lateral underdrain (1995-05-09),

3. 5314630 - Systems and methods for clarifying liquids (1994-05-24),

4. 5198124 - Upflow filter and method of washing same (1993-03-30),

5. 5127582 - Nozzles for rotary agitators (1992-07-07),

6. 5080808 - Method of washing an upflow filter and filter bed employed in said filter (1992-01-14),

7. 5061080 - Rotary agitator (1991-10-29),

8. 4750999 - Filter employing barrier (1988-06-14),

9. 4619765 - Filter bottom construction (1986-10-28),

10. 4364830 - Filter bottom (1982-12-21),

11. 4177147 - Biological treating systems (1979-12-04),

Roberts Filter Manufacturing Company is a leader in the filtration industry, providing high-quality water and wastewater treatment solutions to a variety of industries. With over 100 years of experience, Roberts Filter is known for its innovative products and exceptional customer service. They offer a wide range of filtration systems, including pressure filters, gravity filters, and membrane systems, designed to meet the unique needs of their clients.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

11 Patents

#1 in Darby, PA

#981 in Pennsylvania

#26,680 in US

#50,159 in the World

Darby, PA, United States of America

Roberts Filter Manufacturing Company