KleanTu LLC
Subsurface wastewater treatment systems (NitROE® and SanTOE® platforms)
- Sector
- Clean tech
- Headquarters
- BRIDGEVILLE, PA
- Founded
- 2016
- Latest Form D
- $550K, Nov 2020
- Total capital
- $550K
- Federal grants
- None on recordNo awards found in SBIR/STTR, NIH, NSF or DoD records.
- Private capital raised
- $550K
- 1 Form D · last Nov 2020
- 71 months since last filing
- Federal contracts
- None on recordNo federal contract awards found.
- Granted patents
- 2
- 2 pending · first 2024
- Rank in peer group#38 of 222
Capital timeline
Latest events
- Private capital raisedForm D · SEC · 1st filing$550K
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 222 peers
Line = medianClean tech · System
- Granted patents#38 · top 17%
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
Researcher links verified by same-company patents and grants- John R. SmithResearcherExecutive OfficerLinked by 2 patents
- Andrew C. MiddletonExecutive OfficerNamed in SEC Form D filings
- Jaw K. FuExecutive OfficerNamed in SEC Form D filings
- Kellie A. KuhlemanExecutive OfficerNamed in SEC Form D filings
- Laurie V. WinslowExecutive OfficerNamed in SEC Form D filings
- Richard C. DonahueExecutive OfficerNamed in SEC Form D filings
What it has protected
USPTO · 2 granted of 4- PendingTank Configuration With Enhanced DenitrificationUSPTOApplication 19438870
- GrantedTank Configuration with Enhanced DenitrificationUSPTOUS 12,534,392
- PendingMultiple Chamber Septic Tank with a Plurality of Large and Small Access PortsUSPTOApplication 18651122
Show all 4 patent records
- Tank Configuration With Enhanced DenitrificationMay 7, 2026 · Application 19438870Pending
- Tank Configuration with Enhanced DenitrificationJan 27, 2026 · US 12,534,392Granted
- Multiple Chamber Septic Tank with a Plurality of Large and Small Access PortsAug 22, 2024 · Application 18651122Pending
- Multiple Chamber Septic Tank with a Plurality of Large and Small Access PortsMay 14, 2024 · US 11,981,590Granted
Related companies, and why
- Drylet, Inc.Similar federal contract value in Clean tech · null in contracts
- AiDash IncSimilar federal contract value in Clean tech · null in contracts
- Vision Quest Gold, Inc.Similar federal contract value in Clean tech · null in contracts
- GlassPoint Solar, Inc.Similar federal contract value in Clean tech · null in contracts
- Northeastern Biochar Solutions LLCSimilar federal contract value in Clean tech · null in contracts
- Revida, Inc.Similar federal contract value in Clean tech · null in contracts
Regulatory activity · Clean tech
- 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
- Epyrifenacil; Pesticide TolerancesEnvironmental Protection Agency
- Fluoxapiprolin; Pesticide TolerancesEnvironmental Protection Agency
- Chlormequat Chloride; 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 .