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PAX SCIENTIFIC INC

SAN RAFAEL, CA · Clean tech · Private

Low-temperature water purification system using simplified thermal distillation process

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Updated · paxscientific.com

Sector
Clean tech
Headquarters
SAN RAFAEL, CA
Total capital
$3.2M
Federal grants
$2.4M
4 awards · 2015–2024
Rank in peer group#24 of 27
Private capital raised
None on recordNo Form D filings on SEC EDGAR. Some raises are not filed.
Federal contracts
$732K
2 awards · Defense
Rank in Clean tech#63 of 914
Granted patents
1
7 pending · first 2014
Rank in peer group#11 of 27

Capital timeline

20152017201920212023FEDERAL ↑EQUITY ↓Cumulative $3.2M$150K$789K$232K$997K$500K$500K
20152017201920212023FEDERAL ↑EQUITY ↓Cumulative $3.2M$789K$997K$500K$500K

Latest events

  • Federal grantDefense · Phase II · Research And Development$500K
  • Federal contractDefense · Research And Development$500K
  • Federal grantDefense · Phase II · An innovative system that produces cost-effective potable water and hydrogen from seawater and renewable photovoltaic energy$997K
  • Federal contractDefense · Kick-off Briefing Materials$232K
  • Federal grantNSF · Phase II · SBIR Phase II: PAX Rotor Optimization for Flexible Micro-Hydro$789K
  • Federal grantNSF · Phase I · SBIR Phase I: PAX Rotor Development for Flexible Power Take-Off$150K

Node area is scaled to amount. Form D reports securities sold, which can differ from an announced round; filings are numbered in the order they were made.

Standing among 27 peers

Line = median

Clean tech · Device

  • Federal grantsBelow median
  • Granted patents#11 · top 41%

Cumulative measures favor older companies. Rankings describe position today, not outcome. Below the median, ranks show as a band rather than a number.

Founders and team

No founders are linked to this company yet.

Founders appear once a person is matched to the company through its own patents, grants or filings. We never infer people from social profiles.

Checked: USPTO inventors; federal award principal investigators; SEC Form D related persons · Oct 23, 2026

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What it has protected

USPTO · 1 granted of 8
  • PendingFan AssemblyUSPTOApplication 16554473
  • PendingPressure Shock-induced Cooling CycleUSPTOApplication 14079970
  • GrantedFluid Flow ControllerUSPTOUS 8,733,497
Show all 8 patent records
  • Fan AssemblyMar 4, 2021 · Application 16554473Pending
  • Pressure Shock-induced Cooling CycleJun 26, 2014 · Application 14079970Pending
  • Fluid Flow ControllerMay 27, 2014 · US 8,733,497Granted
  • Fluid Flow Control DeviceApr 10, 2014 · Application 14103593Pending
  • Annular DuctApplication PCTUS2019021808Pending
  • Water CraftApplication PCTUS2008011864Pending
  • StructuresApplication PCTUS2008011867Pending
  • Axial Flow FanApplication PCTUS2007020916Pending

Related companies, and why

Regulatory activity · Clean tech

Sector-level, not company-level

Rules are matched to sector, not to company. Recent activity in a sector is context rather than a signal about this business — until rules are matched to what a company actually builds, the section is shown as context and nothing more.

Sources

Federal grants from SBIR/STTR, NIH, NSF and DoD records. Federal contracts from USAspending.gov. Private capital from SEC Form D. Patents from USPTO. Publications from OpenAlex. Regulatory activity from the Federal Register. Press matched on company name.

How to read this page

Figures show associations in public records, not causes or predictions. Nothing here is investment advice. An em-dash means no record was found under this company's name, not that none exists.

Data freshness

SEC Form D filings through . SBIR and STTR awards through .