For the Inventor, By the Inventor

Enter assignee name

Madison, WI, United States of America

Weir Slurry Group, Inc.

USPTO Granted Patents = 27

% Expired Patents = 18.5

CIPO Patents = 5

EPO Patents = 3

Trademarks = 4

Forward Citations = 115

Loading Chart...

Loading Chart...

27 inventors (with patents filed for the assignee):

Randy J Kosmicki (12 out of 13 patents)

Ronald J Bourgeois (5 out of 6 patents)

Francisco A Gozalo (4 out of 4 patents)

4. Sanford W Clark (4 out of 4 patents)

5. Tham Meng (4 out of 4 patents)

6. Michael L Viken (4 out of 4 patents)

7. Timothy Lane (3 out of 3 patents)

8. Aleksander S Roudnev (3 out of 4 patents)

9. Allen David Russell (2 out of 2 patents)

10. Craig Ian Walker (1 out of 6 patents)

11. Aaron Wirth (1 out of 1 patent)

12. Matthew Richard Frye (1 out of 1 patent)

13. Richard J Fecho (1 out of 1 patent)

14. Ricardo Abarca Melo (1 out of 13 patents)

15. David Timm (1 out of 1 patent)

Core Competencies:

Centrifugal Pump

Impeller

Wear-Resistant Rubber

Sealing Arrangement

Main Liner

Contaminant Detection

Pump Casing

Hydro-Cyclone

Gate Valve

Flexible Seal

Velocity Profile

Swellable Rubber

27 patents: Sort by Forward Citations

1. 12152599 - Composite metal centrifugal slurry pump impeller (2024-11-26),

2. 12123429 - Alignment portions on main liner for a pump (2024-10-22),

3. 12117018 - Drive side liner for a centrifugal pump (2024-10-15),

4. 11959487 - Centrifugal slurry pump impeller (2024-04-16),

5. 11466143 - Wear-resistant rubber compositions, systems, and methods (2022-10-11),

6. D958841 - Main liner for a pump (2022-07-26),

7. D958195 - Main liner for a pump (2022-07-19),

8. 11236763 - Inverted annular side gap arrangement for a centrifugal pump (2022-02-01),

9. 10913839 - Wear-resistant rubber compositions, systems, and methods (2021-02-09),

10. 10895265 - Sealing arrangement for adjustable elements of a pump (2021-01-19),

11. 10647835 - Wear-resistant rubber compositions, systems, and methods (2020-05-12),

12. 10590791 - Shaft seal assembly with contaminant detection system (2020-03-17),

13. 10436331 - Gate valve (2019-10-08),

14. 10385647 - Swellable rubber compositions (2019-08-20),

15. 10179873 - Water swellable rubber composition suitable for use with oil field equipment (2019-01-15),

Weir Slurry Group, Inc. specializes in the development and manufacturing of advanced slurry handling equipment and solutions. The company focuses on providing innovative technologies for industries such as mining, mineral processing, and other heavy-duty applications. With a commitment to enhancing operational efficiency and safety, Weir Slurry Group leverages its expertise to deliver high-performance products tailored to meet the specific needs of its clients. Headquartered in Madison, Wisconsin, the company serves a global market.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

27 Patents

#36 in Madison, WI

#293 in Wisconsin

#12,405 in US

#23,968 in the World

Madison, WI, United States of America

Weir Slurry Group, Inc.

Forward Citations = 115

27 inventors:

Randy J Kosmicki (12 out of 13 patents)

Ronald J Bourgeois (5 out of 6 patents)

Francisco A Gozalo (4 out of 4 patents)

4. Sanford W Clark (4 out of 4 patents)

5. Tham Meng (4 out of 4 patents)

Please report any incorrect information to [email protected]

Loading…