51
Granted patentsIntellectual Property
The engineering behind the WaHa Vaporator®, protected in depth.
Our technology is covered by a portfolio of granted patents we own and exclusively license. It spans the sealed thermodynamic engine, the sorbent materials, and the controls that let the machine produce pure water and inexpensive dry air in arid and cold conditions, where compressor based systems derate or fail.
Pure Water. Inexpensive Dry Air. Anywhere.
17
Jurisdictions26 / 25
Owned / exclusively licensedWhere we hold granted patents
17 jurisdictions, six continents
National patent grant
European Patent (one EPO grant)
No filing
European coverage reflects a single granted European Patent, validatable across European Patent Convention member states. It is counted as one jurisdiction in the figures above.
Patents we own
26 grantedGranted patents held directly by Water Harvesting Inc. d/b/a WaHa Inc., covering the core machine architecture and its refinements. Each number links to its public record.
Heat-pump atmospheric water generation
| US 11,559,762 | United States | Foundational |
| US 12,151,199 | United States | |
| JP 7,868,081 | Japan | |
| BR 112023021039 | Brazil | |
| TW I894460 | Taiwan | |
| TW I921268 | Taiwan | |
| CN ZL202220931877.2 | China |
Refrigerator-integrated harvesting
| US 12,054,922 | United States | |
| US 12,227,923 | United States | |
| MX 430789 | Mexico | |
| MX 433840 | Mexico | |
| CA 3168751 | Canada |
Water harvesting systems and methods
| US 12,054,402 | United States |
Climate-adjustable and atmospheric harvesting
| US 11,536,010 | United States | |
| US 11,781,295 | United States | |
| US 12,098,529 | United States | |
| TW I889947 | Taiwan |
High-efficiency harvesting
| US 12,390,760 | United States | |
| JP 7,693,693 | Japan |
Air-to-air energy recovery
| US 12,343,672 | United States | |
| AU 2023347171 | Australia |
Dehumidification and low dew point
| US 12,372,254 | United States | |
| US 12,420,229 | United States |
Cold-start operation
| US 12,472,464 | United States |
Adsorption enthalpy removal
| US 12,098,530 | United States |
Desiccant and sorbent systems
| US 12,351,483 | United States |
Patents we exclusively license
25 grantedGranted patents owned by the University of California, Berkeley and exclusively licensed to WaHa for atmospheric water generation. This is the foundational metal-organic framework work that underpins the sorbent chemistry.
Porous aluminum framework materials
| US 11,014,068 | United States | |
| US 11,701,638 | United States |
Metal-organic frameworks with multiple building units
| US 10,087,205 | United States |
Active atmospheric water harvester
| US 11,697,925 | United States | |
| AU 2019322840 | Australia | |
| BR 112021002648-7 | Brazil | |
| CL 66065 | Chile | |
| CN ZL2019800619690 | China | |
| EP 3837399 | Europe (EPO) | |
| IN 408994 | India | |
| JP 6983358 | Japan |
Multivariate metal-organic frameworks
| US 11,998,889 | United States | |
| AU 2019386080 | Australia | |
| BR 1120210101390 | Brazil | |
| CA 3120865 | Canada | |
| CN 113272043 | China | |
| IL 283376 | Israel | |
| IN 538621 | India | |
| JP 7543266 | Japan | |
| NZ 776804 | New Zealand | |
| PH 12021551201 | Philippines | |
| SG 11202105462P | Singapore | |
| VN 47015 | Vietnam | |
| ZA 2021/03624 | South Africa |
Cross-flow active harvester
| US 12,000,122 | United States |
Beyond its granted patents, WaHa holds a substantial body of proprietary trade secrets and know-how, developed across more than 54 cumulative months of field operation. This know-how is deliberately not disclosed in the patent record and forms an additional, durable layer of competitive protection.
About this list
The patents above are granted and in force. WaHa also has a substantial number of pending applications that are not listed here.
Owned patents are held by Water Harvesting Inc. d/b/a WaHa Inc. Licensed patents are owned by the University of California, Berkeley and exclusively licensed to WaHa for atmospheric water generation.
Frequently asked questions
How many patents does WaHa hold?
WaHa holds 51 granted patents across 17 jurisdictions on six continents: 26 owned directly by Water Harvesting Inc. d/b/a WaHa Inc., and 25 exclusively licensed from the University of California, Berkeley.
Are WaHa's patents owned or licensed?
Both. WaHa owns 26 granted patents outright, covering the core Vaporator® machine architecture and its refinements. The remaining 25 are granted patents owned by UC Berkeley and exclusively licensed to WaHa for atmospheric water generation — the foundational metal-organic framework (MOF) sorbent chemistry.
Does this list include pending patent applications?
No. The patents listed are granted and in force. WaHa also has a substantial number of pending patent applications that are not included in this list.
How is European patent coverage counted?
European coverage reflects a single granted European Patent, validated across European Patent Convention member states, and is counted as one jurisdiction in WaHa's totals.
Does WaHa protect its technology beyond patents?
Yes. Beyond its granted patents, WaHa holds a substantial body of proprietary trade secrets and know-how developed across more than 54 cumulative months of field operation, which is deliberately not disclosed in the patent record.