Energy Recovery, Inc.
Pressure exchanger devices that recover energy from fluid flows in desalination and industrial processes
New patent ·
- Sector
- Energy
- Headquarters
- SAN LEANDRO, CA
- Founded
- 1992
- Latest Form D
- $7.1M, Jan 2010
- Total capital
- $7.1M
- Federal grants
- None on recordNo awards found in SBIR/STTR, NIH, NSF or DoD records.
- Private capital raised
- $7.1M
- 1 Form D · last Jan 2010
- 202 months since last filing
- Federal contracts
- None on recordNo federal contract awards found.
- Granted patents
- 3
- 22 pending · first 2025
- Rank in peer group#41 of 151
Capital timeline
Latest events
- Private capital raisedForm D · SEC · 1st filing$7.1M
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 151 peers
Line = medianEnergy · Device
- Granted patents#41 · top 27%
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
From SEC Form D filings- Arve Peter HanstveitDirectorNamed in SEC Form D filings
- Borja Elisabeth BlancoExecutive OfficerNamed in SEC Form D filings
- Carolyn Elisabeth BostickExecutive OfficerNamed in SEC Form D filings
- Deno Elisabeth BokasExecutive OfficerNamed in SEC Form D filings
- Dominique Olav TrempontDirectorNamed in SEC Form D filings
- Fred Olav JohannessenDirectorNamed in SEC Form D filings
Show all 14 people
- G. G. PiqueExecutive Officer, DirectorNamed in SEC Form D filings
- Hans Peter MicheletExecutive Officer, DirectorNamed in SEC Form D filings
- Jackalyne M. PfannenstielDirectorNamed in SEC Form D filings
- Marie Elisabeth Pate-CornellDirectorNamed in SEC Form D filings
- Paul M. CookDirectorNamed in SEC Form D filings
- Richard Elisabeth StoverExecutive OfficerNamed in SEC Form D filings
- Terry Elisabeth SandlinExecutive OfficerNamed in SEC Form D filings
- Thomas D. WillardsonExecutive OfficerNamed in SEC Form D filings
What it has protected
USPTO · 3 granted of 25- New patentHeat Pump Systems With Pressure ExchangersUSPTOUS 12,768,572
- PendingNon-axial Flow Pressure ExchangerUSPTOApplication 19145184
- PendingHeat Pump Systems With Pressure ExchangersUSPTOApplication 19557847
Show all 25 patent records
- Heat Pump Systems With Pressure ExchangersOct 20, 2026 · US 12,768,572Granted
- Non-axial Flow Pressure ExchangerJul 30, 2026 · Application 19145184Pending
- Heat Pump Systems With Pressure ExchangersJul 9, 2026 · Application 19557847Pending
- Fluid Handling Systems Including A CompressorJun 18, 2026 · Application 18712465Pending
- Geothermal Power Generation Systems With Pressure ExchangersMay 12, 2026 · US 12,624,681Granted
- Datacenter Cooling Systems That Include Pressure ExchangersMay 7, 2026 · Application 19117469Pending
- Thermal Energy Storage Systems Including Pressure ExchangersApr 23, 2026 · Application 19117607Pending
- Cartridge Sealing And Alignment In A Pressure ExchangerMar 26, 2026 · Application 19398552Pending
- Systems And Methods For Repairing Fluid Handling EquipmentMar 12, 2026 · Application 19178442Pending
- Pressure Exchangers With Fouling And Particle Handling CapabilitiesNov 20, 2025 · Application 19279906Pending
- Hydraulic Energy Transfer System With Fluid Mixing ReductionOct 30, 2025 · Application 19260106Pending
- Pressure Exchangers With Fouling And Particle Handling CapabilitiesSep 2, 2025 · US 12,404,877Granted
- Refrigeration System With High Speed Rotary Pressure ExchangerAug 7, 2025 · Application 19093006Pending
- Pressure Exchanger Flow AdapterJun 26, 2025 · Application 18849444Pending
- Low Energy Consumption Refrigeration System With A Rotary Pressure Exchanger Replacing The Bulk Flow Compressor And The High Pressure Expansion ValveMar 20, 2025 · Application 18959005Pending
- Control Of Refrigeration And Heat Pump Systems That Include Pressure ExchangersDec 19, 2024 · Application 18819805Pending
- Refrigeration And Heat Pump Systems With Pressure ExchangersNov 28, 2024 · Application 18791794Pending
- Transcritical Refrigeration Pressure ExchangerApplication 19131825Pending
- Systems For Production Of Green Hydrogen, Electricity And HeatApplication PCTUS2025025834Pending
- Control Of Refrigeration And Heat Pump System Architectures That Include Pressure ExchangersApplication 19115965Pending
- Semi-hermetic Motorized Pressure ExchangerApplication 19475739Pending
- Pressure Exchanger Integrated Booster Rack SystemsApplication PCTUS2024052118Pending
- Controls for Rack Integrated Boosterless PX Refrigeration ArchitecturesApplication 63694128Pending
- Refrigeration Systems Including Pressure Exchangers And Controllable ElementsApplication PCTUS2024045705Pending
- Pressure Exchanger Integrated Booster Rack SystemsApplication 63678978Pending
Related companies, and why
- IONOMER SOLUTIONS LLCSimilar federal contract value in Energy · null in contracts
- Moxion Power Co.Similar federal contract value in Energy · null in contracts
- Emerald AI, Inc.Similar federal contract value in Energy · null in contracts
- Alligant Scientific, LLCSimilar federal contract value in Energy · null in contracts
- MVSystems LLCSimilar federal contract value in Energy · null in contracts
- EXOPOWER INCSimilar federal contract value in Energy · null in contracts
Regulatory activity · Energy
- Air Plan Approval; Michigan; Redesignation and Maintenance Plan for the Partial St. Clair 2010 1-Hour Sulfur Dioxide (SO2) NAAQS Nonattainment AreaEnvironmental Protection Agency
- Air Plan Approval; Delaware; 2006 24-Hour Fine Particulate Matter Limited Maintenance Plan for the Philadelphia Nonattainment AreaEnvironmental Protection Agency
- Air Plan Approval; Oklahoma; Updates to the State Implementation Plan for New Source Review Permitting and General SIP ProvisionsEnvironmental Protection Agency
- List of Approved Spent Fuel Storage Casks: NAC International, Inc., MAGNASTOR® Storage System, Certificate of Compliance No. 1031, Amendment Nos. 16 and 17 and Revisions to Amendment Nos. 0 Through 16Nuclear Regulatory Commission
- Epyrifenacil; Pesticide TolerancesEnvironmental Protection Agency
- Fluoxapiprolin; Pesticide TolerancesEnvironmental Protection Agency
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 .