Bloomington, MN, United States of America

Fred H Wahlquist

This inventor holds 35 USPTO granted patents, plus 3 CIPO patents and 9 EPO patents, primarily in Air Cleaner Systems. Top assignee: Donaldson Comapny, Inc.. Active years: 1984-2025.

USPTO Granted Patents = 35

% Patents Active = 88.6

CIPO Patents = 3 (Patent Applications = 1)

EPO Patents = 9 (Patent Applications = 7)

Average Co-Inventor Count = 4.8

ph-index = 17

Forward Citations = 2,392(Granted Patents)

Location History:

Richfield, MN (US) (1984 - 1985)
Bloomington, MN (US) (1992 - 2023)

Company Filing History:

35 out of 1,445

Donaldson Comapny, Inc.

patents

Years Active: 1984-2025

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Areas of Expertise:

Pulse Jet Technology

Air Cleaner Components

Evacuation Valves

Fluted Filter Media

Multistage Air Cleaner

Self-Cleaning Filter

Inline Filters

Clamp Coupling

Liquid Ingestion Prevention

Scavenger Arrangement

Conical Filter

Rolled Liquid Filter

35 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12239934 - Pulse ring assembly for air cleaner systems and methods thereof (2025-03-04),

2. 11826691 - Pulse jet air cleaner systems; evacuation valve arrangements; air cleaner components; and, methods (2023-11-28),

3. 11731072 - Pulse ring assembly for air cleaner systems and methods thereof (2023-08-22),

4. 10967320 - Pulse jet air cleaner systems; components; and, methods (2021-04-06),

5. 10675578 - Pulse jet air cleaner systems; evacuation valve arrangements; air cleaner components; and, methods (2020-06-09),

6. 10512870 - Pulse jet air cleaner systems, components, and, methods (2019-12-24),

7. 9757673 - Pulse jet air cleaner systems, components, and, methods (2017-09-12),

8. 9737837 - Pulse jet air cleaner systems; evacuation valve arrangements; air cleaner components; and, methods (2017-08-22),

9. 9186612 - Pulse jet air cleaner systems; evacuation valve arrangements; air cleaner components; and, methods (2015-11-17),

10. 9108135 - Pulse jet air cleaner systems; components; and, methods (2015-08-18),

11. 8951321 - Pulse jet air cleaner components; features; assemblies; and, methods (2015-02-10),

12. 8460442 - Fluted filter media (2013-06-11),

13. 8444748 - Multistage air cleaner including pulse cleaning system (2013-05-21),

14. 8404021 - Pulse jet air cleaner system; components; and, methods (2013-03-26),

15. 8268053 - Fluted filter media (2012-09-18),

Title: The Legacy of Fred H. Wahlquist

Introduction: Fred H. Wahlquist, a distinguished inventor hailing from Bloomington, MN, has made significant contributions to the field of innovation with his groundbreaking ideas and inventions.

Latest Patents: Fred H. Wahlquist holds several patents in various industries, showcasing his versatility and creativity in inventing new solutions to existing problems.

Career Highlights: Throughout his illustrious career, Fred H. Wahlquist has been recognized for his innovative spirit and dedication to pushing the boundaries of what is possible. His work has left a lasting impact on the world of inventions.

Collaborations: Fred H. Wahlquist has collaborated with leading experts in the field, sharing his knowledge and expertise to create revolutionary products that have changed the way we live and work.

Conclusion: Fred H. Wahlquist's passion for innovation and his relentless pursuit of excellence have solidified his place as a pioneering inventor, inspiring future generations to continue pushing the boundaries of what is possible.