Head covering device providing filtered intake and exhaust air
US-12357042-B2 · Jul 15, 2025 · US
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Duncan Jeff patents
Duncan Jeff is listed as an inventor on 31 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Duncan Jeff |
| Total patents | 31 |
| First publication | Nov 29, 2018 |
| Latest publication | Jul 15, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Head Covering Device Providing Filtered Intake and Exhaust Air
US-2025064151-A9 · Feb 27, 2025 · US
Personal air filtering device with automatic control of air movement
US-12185787-B2 · Jan 7, 2025 · US
Package delivery vehicle
US-12122284-B2 · Oct 22, 2024 · US
Package delivery system
US-12077087-B2 · Sep 3, 2024 · US
Personal air filtration system with smart app
US-12075874-B2 · Sep 3, 2024 · US
Solid Oxide Fuel Cell with Integrated Heat Use
US-2024162456-A1 · May 16, 2024 · US
Fleet for delivering packages
US-11803807-B2 · Oct 31, 2023 · US
Mobile vehicle fueling system
US-11752983-B2 · Sep 12, 2023 · US
Face Mask Providing Filtered Intake and Exhaust Air
US-2022305302-A1 · Sep 29, 2022 · US
Recent patents
Latest publications not already listed above.
Head Covering Device Providing Filtered Intake and Exhaust Air
US-2022296939-A1 · Sep 22, 2022 · US
Head Covering Device with Communication Hardware
US-2022295935-A1 · Sep 22, 2022 · US
Head Covering Device Providing Filtered Intake and Exhaust Air
US-2022295923-A1 · Sep 22, 2022 · US
Motor vehicle latching system with pyrotechnic blocking device
US-11408208-B2 · Aug 9, 2022 · US
Package Delivery System
US-2022084154-A1 · Mar 17, 2022 · US
Package Delivery Vehicle
US-2022080875-A1 · Mar 17, 2022 · US
Package Delivery System with Robots for Last Distance
US-2022080873-A1 · Mar 17, 2022 · US
Multi Use Package Receptacle
US-2022084340-A1 · Mar 17, 2022 · US
Container for Delivering Multiple Packages at a Pickup Location
US-2022083968-A1 · Mar 17, 2022 · US
Container for Delivering Packages
US-2022079368-A1 · Mar 17, 2022 · US
Fleet for Delivering Packages
US-2022081230-A1 · Mar 17, 2022 · US
Head Covering Device Providing Filtered Intake and Exhaust Air
US-2022016450-A1 · Jan 20, 2022 · US
Personal Air Filtering Device with Air Mover Pulling Air Out of the Device
US-2022016451-A1 · Jan 20, 2022 · US
Head Covering Device Providing Filtered Air and Climate Control
US-2022000209-A1 · Jan 6, 2022 · US
Personal Air Filtering Device with Automatic Control of Air Movement
US-2021289875-A1 · Sep 23, 2021 · US
Personal Air Filtering Device with Safety Features
US-2021290989-A1 · Sep 23, 2021 · US
Personal Air Filtration System with Smart App
US-2021289851-A1 · Sep 23, 2021 · US
Mobile Vehicle Fueling System
US-2021245719-A1 · Aug 12, 2021 · US
Health and Wellness Monitoring System for Multiple Users
US-2021076950-A1 · Mar 18, 2021 · US
Motor vehicle latching system with pyrotechnic blocking device
US-2019003211-A1 · Jan 3, 2019 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Hall Labs Llc | 29 |
| Kiekert Ag | 2 |
| Microclimate Inc | 2 |
| Vanderhall Motorworks Inc | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| A62B18/045 | 13 |
| A42B3/286 | 12 |
| Y02T10/7072 | 11 |
| Y02T10/70 | 11 |
| Y10S901/00 | 10 |