Air cleaner assemblies and methods of use
US-2025161853-A1 · May 22, 2025 · US
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Johnston Robert D patents
Johnston Robert D is listed as an inventor on 12 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Johnston Robert D |
| Total patents | 12 |
| First publication | Dec 21, 2017 |
| Latest publication | May 22, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Filter cartridges; air cleaner assemblies; housings; features; components; and, methods
US-2025050260-A1 · Feb 13, 2025 · US
Air cleaner assemblies and methods of use
US-12214307-B2 · Feb 4, 2025 · US
Air cleaner assemblies and methods of use
US-11951433-B2 · Apr 9, 2024 · US
Air cleaner assemblies and methods of use
US-2023390682-A1 · Dec 7, 2023 · US
Filter cartridges; air cleaner assemblies; housings; features; components; and, methods
US-2023338883-A1 · Oct 26, 2023 · US
Air cleaner assemblies and methods of use
US-11684882-B2 · Jun 27, 2023 · US
Filter cartridges; air cleaner assemblies; housings; features; components; and, methods
US-11660558-B2 · May 30, 2023 · US
Air cleaner assemblies and methods of use
US-2022323895-A1 · Oct 13, 2022 · US
Air cleaner assemblies and methods of use
US-11318405-B2 · May 3, 2022 · US
Recent patents
Latest publications not already listed above.
Air Cleaner Assemblies and Methods of Use
US-2021086121-A1 · Mar 25, 2021 · US
Air cleaner assemblies and methods of use
US-2017361260-A1 · Dec 21, 2017 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Donaldson Co Inc | 12 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| B01D2271/022 | 12 |
| B01D46/2411 | 9 |
| B01D2279/60 | 9 |
| B01D46/10 | 9 |
| B01D46/0006 | 9 |