Methods and systems for maintaining a healthy building
US-12437597-B2 · Oct 7, 2025 · US
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Pham Hai patents
Pham Hai is listed as an inventor on 23 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Pham Hai |
| Total patents | 23 |
| First publication | Sep 14, 2017 |
| Latest publication | Oct 7, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Methods and systems for maintaining a healthy building
US-2023419760-A1 · Dec 28, 2023 · US
Methods and systems for maintaining a healthy building
US-11783658-B2 · Oct 10, 2023 · US
Marker based smart landing pad
US-11685558-B2 · Jun 27, 2023 · US
Automatic UAV landing pad
US-11687072-B2 · Jun 27, 2023 · US
Determining a location of a vehicle using received surveillance signals
US-11442140-B1 · Sep 13, 2022 · US
Determining a location of a vehicle using received surveillance signals
US-2022268947-A1 · Aug 25, 2022 · US
Marker based smart landing pad
US-2022242589-A1 · Aug 4, 2022 · US
Methods and systems for maintaining a healthy building
US-2021390812-A1 · Dec 16, 2021 · US
Automatic uav landing pad
US-2021349456-A1 · Nov 11, 2021 · US
Recent patents
Latest publications not already listed above.
Fall detection alert/alarm device and method
US-11024153-B2 · Jun 1, 2021 · US
Fall protection radio frequency emergency beacon
US-10729922-B2 · Aug 4, 2020 · US
Fall detection alert/alarm device and method
US-2020242915-A1 · Jul 30, 2020 · US
Fall protection radio frequency emergency beacon
US-2020147421-A1 · May 14, 2020 · US
Fall detection alert/alarm device and method
US-10650664-B2 · May 12, 2020 · US
Fall protection radio frequency emergency beacon
US-10610710-B2 · Apr 7, 2020 · US
Fall detection alert/alarm device and method
US-2019371159-A1 · Dec 5, 2019 · US
Fall detection alert/alarm device and method
US-10431072-B2 · Oct 1, 2019 · US
Fall detection alert/alarm device and method
US-2019156656-A1 · May 23, 2019 · US
Fall protection radio frequency emergency beacon
US-2019070445-A1 · Mar 7, 2019 · US
Fall detection alert/alarm device and method
US-10223898-B2 · Mar 5, 2019 · US
Fall detection alert/alarm device and method
US-2019012900-A1 · Jan 10, 2019 · US
Systems, methods, and devices for indoor location
US-2017265041-A1 · Sep 14, 2017 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Honeywell Int Inc | 23 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| A62B35/04 | 12 |
| A62B35/0025 | 12 |
| A62B35/0018 | 8 |
| G08B25/016 | 8 |
| G16H50/30 | 4 |