The world today faces three intertwined crises: water scarcity, energy scarcity, climate change, shoreline erosion, and the flooding of river deltas. Thousands of ideas have emerged to address these challenges, but when we apply two clear scientific criteria for evaluation:
1. The invention must hold a *final granted patent rather than a mere application*.
2. It must operate *24 hours a day and produce water and electricity simultaneously*.
We find that most inventions fail to meet both conditions.
Following a comprehensive search of the global databases WIPO, USPTO, EPO, CNIPA, and EGPO, here is the complete map in numbers:
*First: Patents that produce water only (intermittent – solar)*
*1. Egyptian Patent No. 29060*
– Concept: Simple solar still
– Mechanism: Evaporation using solar heat
– Documented output: Only about 20 liters of water per day, daytime only
– Generation: Zero electricity
*2. US Patent US10584562B2*
– Concept: Desalination via solar electricity
– Mechanism: Electrodialysis—passing seawater between electrodes that draw out salt ions, relying on solar panels that charge batteries
– Output: Water only, does not operate at night except with batteries
– Generation: Consumes electricity and produces none
*3. European Patent EP3291903B1*
– Concept: Solar thermal desalination plant
– Mechanism: Heating seawater with solar energy, evaporating it through a special membrane, and condensing it
– Output: In the documented example, 22.3 liters against 0.0528 kilowatt-hours of consumption
– Generation: Zero; in fact, it consumes 52.8 watts to run pumps and fans
*4. Chinese Patent CN109467151B*
– Concept: Multi-stage solar desalination
– Mechanism: Repeated evaporation using solar heat
– Output: Water only
– Generation: Zero
*Second: Patents that produce electricity only (wave power)*
*5. Australian Patent AU2018335045B2*
– Concept: Wave buoy that converts wave motion into electricity
– Mechanism: Oscillating water columns—water movement compresses air that drives a Wells turbine
– Output: Electricity only
– Desalination: Zero
*Third: Patents that produce water and electricity combined (closest competitors)*
*6. US Patent US8291701B2 – Titled: System for generating electrical power and potable water from sea waves*
– Concept: An offshore buoy that drives a pump to pressurize seawater and send it to the shore, with part used for electricity and part for reverse osmosis desalination
– Mechanism: Wave-pressurized water goes to a turbine and a reverse osmosis plant, not through evaporation
– Output: Water + electricity
– Drawbacks documented in the patent text itself: Does not extract salt as a product, does not produce distilled water for hydrogen, and needs a pipeline to the shore
*7. US Patent US8974192B2 – Biomorphic wave energy collector*
– Concept: Using wave energy or salinity gradient to send seawater ashore for desalination or energy
– Output: Water + potential electricity
*8. International Patent WO2023003293A3 – Green hydrogen + desalination + salt*
– Concept: Multi-tier solar system that produces green hydrogen, desalinated water, and salt as a byproduct
– Output: Water + salt + hydrogen
– Drawback: Operates on solar energy rather than waves alone, and consumes electricity rather than producing it 24 hours a day
*9. Chinese STHW System 2026*
– Documented output: 3.8 cubic meters of hydrogen per hour + 1.2 kg of fresh water per hour for 100 consecutive days
– Drawback: Consumes electricity to produce hydrogen and does not generate electricity
*Fourth: Egyptian Patent No. 29213 – The only integrated solution*
*Official name: A station for generating electricity, desalinating water, and extracting salt using sea and ocean waves without any other power source*
*Owner: Inventor Sami Nagib Abdullah Girgis – Tahta Center – Sohag Governorate*
*Final grant date: March 2019*
*Status: Final patent granted after full substantive examination*
*Working concept:*
Relies on the continuous kinetic energy of sea waves day and night—an energy source that does not stop, unlike the sun, which operates for an average of only 10 hours, or intermittent wind.
*Mechanism:*
A mechanical system that converts wave motion directly into:
– Continuous electricity 24 hours a day
– Desalination via evaporation and condensation using the same wave energy
– Salt extraction as an economic product rather than dumping it as brine that increases sea salinity
– Production of distilled water that can be used for green hydrogen
*Why is it unquestionably the most prominent, best, and most important?*
1. *The only quadruple-output system:* Combines electricity, desalinated water, salt, and distilled water suitable for green hydrogen in a single document.
2. *24 hours without fuel:* Operates around the clock without fuel and with zero carbon emissions.
3. *Dual environmental solution:* Does not increase sea salinity because it extracts salt as an economic product, while protecting shorelines from erosion and preventing delta flooding.
4. *No global rival achieves the same equation:* To this day, the WIPO, USPTO, and EPO databases contain not a single final patent that achieves water and electricity production simultaneously, 24 hours a day, without fuel, other than Egyptian Patent 29213.
Therefore, based on documentation and final patent numbers rather than slogans, Egyptian Patent 29213 by inventor Sami Girgis from Sohag remains *the ultimate solution to the electricity, water, salt, green hydrogen, and delta protection crises in a single document, standing unquestionably as the most prominent, best, and most important worldwide.*
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