Breaking: Pure Blue Tech advances to the XPRIZE Water Scarcity semifinals 17 Track B teams move toward Q4 2026 testing

Person / Water Technology

Ryan Vogel Is Teaching Water Filters to Shake Off the Gunk

The Pure Blue Tech founder has spent more than a decade pursuing a stubborn idea: a membrane should defend itself. Now his ultrasonic reverse-osmosis technology is headed into the XPRIZE Water Scarcity semifinals.

The nuisance begins invisibly. A reverse-osmosis membrane sits inside a pressure vessel, doing the unromantic work of separating clean water from what should stay behind. Then residue arrives. Organics, particles, bacteria and mineral scale settle on the surface. Flow weakens. Pressure rises. Cleaning chemicals enter the conversation. Eventually, so do shutdowns, replacement parts and invoices.

Ryan Vogel has spent most of his adult career staring at that chain of events and asking whether the membrane could interrupt it. His company, Pure Blue Tech, makes reverse-osmosis elements with thin ultrasonic transducers integrated into them. The vibrations are meant to disturb fouling and scaling where they begin, improving performance without asking a utility or factory to reinvent the rest of its plant.

It is an engineer's answer wrapped in an operator's question: can the filter take better care of itself?

Ryan Vogel seated beside a large body of water at sunset
Ryan Vogel chose a problem with an endless view and a microscopic villain: the material that clings to a membrane.

A career change measured in gallons

Water was not the original plan. As a young student, Vogel was drawn to neurosurgery. He later explained that entrepreneurship seemed capable of helping people at a different scale, and the focus shifted from one patient at a time to the systems underneath entire cities and industries. He graduated from the University of Washington in 2013, the same year the idea behind Pure Blue Tech won the university's Business Plan Competition and its $25,000 grand prize.

There is a pleasing mismatch between that modest check and the size of the problem it helped pursue. Desalination and water reuse are capital-heavy, risk-conscious fields. A clever lab result still has to become hardware, survive real feedwater, satisfy operators, fit established systems and make financial sense over years. Water does not care about a pitch deck. It has chemistry.

“Water is the backbone of every industry in the world - it's the backbone of life.”Ryan Vogel

Before Pure Blue Tech, Vogel worked in business development and marketing at Assets America, a commercial real-estate finance company. That background matters. His role has never been confined to a laboratory bench. Pure Blue Tech describes his remit as strategic direction, partnerships, federal grants and contracts, commercialization, and building teams and advisory relationships. He is the translator between invention and adoption, a job that can be harder than either side likes to admit.

2013UW business-plan win and company launch
10,799,835U.S. patent number for the ultrasound approach
17Track B semifinalists in XPRIZE Water Scarcity

The small vibration with a large job

The core technology is easier to grasp than the patent language. Reverse osmosis forces water through a selective membrane. Fouling and scaling obstruct that surface, so the system works harder and needs more intervention. Pure Blue Tech integrates flexible transducers into the membrane element. They generate ultrasound near the surface, creating physical motion intended to make accumulation more difficult.

The distinction between a promising effect and a durable product is the whole game. Vogel, Adam Greenberg and membrane veteran David Paulson are named inventors on the U.S. patent granted in 2020. The company then received federal Small Business Innovation Research support: Phase I funding in 2021 and Phase II support in 2022. The work moved into industrial-scale reverse-osmosis systems, where the integrated ultrasound prototype reduced membrane fouling by up to half in reported testing.

For a plant operator, the attraction is not ultrasound as spectacle. It is fewer interruptions. Chemical cleaning consumes supplies and produces waste. Higher pressure consumes energy. Pretreatment adds equipment and complexity. A membrane element that fits familiar hardware while easing those burdens has a practical sales story. The most useful innovation may be the one that lets the rest of the plant remain boring.

The commercial insight is quiet: improve the component operators already replace, rather than asking them to replace the entire system.

Brick by brick, grant by grant

Vogel once described the company as being built “brick by brick.” Hardware founders tend to discover that the bricks are not uniform. One is a license agreement. Another is a veteran hire. Others are patents, federal contracts, pilot sites, manufacturing questions and patient investors. Pure Blue Tech's team mixes membrane, ultrasound, commercialization and systems experience. Vogel also founded PureBlue, a nonprofit, and Aqualyst, a bluetech business catalyst. The company says Aqualyst assembled a network of 55 experts that helped 10 water startups grow.

That network hints at how Vogel approaches expertise. Pure Blue Tech's roster has included Randy Truby, whose career crossed Toray USA, Hydranautics and the International Desalination Association, and David Paulson, whose membrane experience reaches back through Osmonics. Vogel did not arrive from a long career designing membranes. His contribution was to recruit people who had one, give their knowledge a shared commercial target and keep the organization pointed at it. Founders are often described as visionaries. In industrial technology, the more useful talent may be assembling the room in which a vision can survive contact with physics.

His earlier work also supplied a second kind of fluency. Commercial real-estate finance taught him to discuss projects in the language of capital, risk and long payback periods. Water infrastructure speaks that language with an accent of its own. Buyers need reliability data. Investors need a path through certification, manufacturing and procurement. Researchers need room to discover why a prototype misbehaved. The CEO stands in the middle, translating without making any side feel translated.

Graduates from the University of Washington; Pure Blue Tech wins the university's business-plan competition.
Appears on the Forbes 30 Under 30 Energy list as the young company develops its membrane concept.
The ultrasound membrane patent is granted to Vogel, Greenberg and Paulson.
EPA Phase I and Phase II awards support proof of concept and commercialization work.
Pure Blue Tech advances to the XPRIZE Water Scarcity semifinals in Novel Materials and Methods.

The pattern is less a rocket launch than a lock filling with water. Progress rises by increments, each gate opening only after the previous chamber proves sound. Pure Blue Tech was a Seattle Angel Conference finalist in 2021. It later announced a $1 million funding round led by Rockies Venture Club. Federal backing and private money served different purposes, but both pushed the same question closer to the field: does the membrane work well enough, long enough, at the scale customers need?

There is another lesson in the calendar. Climate hardware is frequently judged against software time. A year can produce an app, several versions and a tidy chart of user behavior. A membrane company must source materials, fabricate elements, install equipment, wait for fouling and learn from water that never quite matches the water in the previous test. The feedback loop can be seasonal, site-specific and expensive. Thirteen years is not a punchline here. It is a record of how long industrial proof can take when the product has to function inside critical infrastructure.

Vogel's public comments reveal a founder unusually comfortable with the collective pronoun. He credits teammates, advisers and partners. He has built networks around water entrepreneurship, and his answer to what he would do if money were no object was to invest in and give grants to bluetech startups. Even his advice to his younger self reads less like a growth hack than a maintenance schedule: focus, create structures, meditate, exercise and honor your word.

The next test is not metaphorical

In May 2026, Pure Blue Tech became one of 17 semifinalists in Track B of the XPRIZE Water Scarcity competition. This track is for novel materials and methods that can improve the cost, reliability and sustainability of salt-water separation. The wider competition is worth $119 million, but the immediate milestone is technical: semifinal testing is scheduled to begin in the fourth quarter of 2026.

A prize competition is an unusually tidy frame for a messy engineering reality. Membranes meet different water chemistries. Plants run under different pressures. Customers measure value in operating budgets, not elegant diagrams. Pure Blue Tech now has to make its claims visible under structured evaluation and, ultimately, at customer sites.

The company calls its elements self-preserving, a careful phrase with an important implication. The goal is not to abolish maintenance or pretend that a membrane can become immortal. It is to change the rate at which trouble accumulates. In a large plant, a small improvement repeated across racks of elements and thousands of operating hours can matter more than a dramatic demonstration that cannot be manufactured. Vogel's aspiration is therefore both large and restrained: make reuse and desalination affordable at scale by removing some of the recurring friction already priced into them.

“We're building this brick by brick.”Ryan Vogel

The sentence has aged well. The student competition, the patent, the grants, the prototype and the XPRIZE berth are all bricks. None by itself delivers cheaper desalination. Together, they form the beginnings of a route from laboratory physics to ordinary infrastructure.

That is the charmingly unfashionable quality of Vogel's project. He is not trying to make water look futuristic. He is trying to make a hard-working membrane slightly less needy. If it succeeds, the evidence will appear in quieter pumps, longer runs between cleanings, fewer chemical drums and more usable water. Progress, in this case, may sound like almost nothing at all: a vibration too small to hear, doing its work inside a pipe.