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For the Inventor, By the Inventor

Bloomington, MN, United States of America

Donaldson Comapny, Inc.


USPTO Granted Patents = 1,451

% Expired Patents = 8.2



Trademarks = 71

Forward Citations = 46,795

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797 inventors (with patents filed for the assignee):

goldMedal Steven Scott Gieseke (127 out of 127 patents)

silverMedal Benny K Nelson (87 out of 87 patents)

bronzeMedal Wayne M Wagner (79 out of 81 patents)

4.  Daniel Eric Adamek (78 out of 78 patents)

5.  John R Hacker (69 out of 71 patents)

6.  Gary Ray Gillingham (69 out of 69 patents)

7.  Thomas Donald Raether (66 out of 67 patents)

8.  Richard J Osendorf (62 out of 62 patents)

9.  Wayne R W Bishop (54 out of 54 patents)

10.  Kevin J Schrage (53 out of 53 patents)

11.  Andrew J Dallas (51 out of 53 patents)

12.  Paul R Coulonvaux (48 out of 48 patents)

13.  Gregory L Reichter (46 out of 46 patents)

14.  Thomas John Lundgren (45 out of 45 patents)

15.  Thomas G Miller (44 out of 44 patents)


Core Competencies:
Filter Cartridges
Air Cleaners
Fluid Filtration
High Efficiency Media
Hydrodynamic Separators
Filtration Monitoring
Composite Media
Liquid Filter Assemblies
Dust Loading
Pleated Filters
Affinity Membranes
PTFE Membranes

1,451 patents:

1. D1154324 - Self-locking clamp (2026-10-20),
2. 12768323 - Vehicle fuel monitoring system and methods (2026-10-20),
3. 12759049 - Fume extractor system and methods (2026-10-13),
4. 12747800 - Vent with relief valve (2026-09-29),
5. 12746500 - Filter media, filter media packs, and filter elements (2026-09-29),
6. 12746490 - Substrate treatments (2026-09-29),
7. D1145961 - Spacer (2026-09-01),
8. 12697570 - Coalescing media (2026-08-04),
9. 12692483 - Protein-based purification matrices and methods of using the same (2026-07-28),
10. 12691395 - Filter arrangements for liquids and methods of use (2026-07-28),
11. D1135827 - Restriction indicator with electrical connector (2026-07-21),
12. 12685956 - Pulse air cleaner system with pulse tube extension (2026-07-21),
13. 12673288 - Adsorbent filter assembly (2026-07-07),
14. 12673275 - System and method for deaeration (2026-07-07),
15. D1130707 - Filter cartridge (2026-06-16),
Company Overview
Donaldson Company, Inc. is a leading provider of filtration systems headquartered in Bloomington, Minnesota. The company specializes in developing and manufacturing advanced filtration solutions, including filter cartridges, air cleaners, and fluid filtration systems. Donaldson's expertise extends to high-efficiency media, hydrodynamic separators, and filtration monitoring technologies, catering to a diverse range of industries. With a commitment to innovation, Donaldson enhances the performance and reliability of equipment while promoting cleaner air and fluid environments.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

Donaldson Comapny, Inc. USPTO Patent Assignee Logo
1,451 Patents

#1 in Bloomington, MN

#10 in Minnesota

#343 in US

#682 in the World

Bloomington, MN (US)
Bloomington, MN, United States of America

Donaldson Comapny, Inc.

Forward Citations = 46,795

797 inventors:

goldMedal Steven Scott Gieseke (127 out of 127 patents)

silverMedal Benny K Nelson (87 out of 87 patents)

bronzeMedal Wayne M Wagner (79 out of 81 patents)

4.  Daniel Eric Adamek (78 out of 78 patents)

5.  John R Hacker (69 out of 71 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Donaldson Comapny, Inc.. Retrieved from https://idiyas.com/company/donaldson-company

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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