Streamline Innovations, Inc.
H2S treatment solutions for eliminating hydrogen sulfide pollution in energy, wastewater, landfill, and biogas operations
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Updated · streamlineinnovations.com
- Sector
- Clean tech
- Headquarters
- SAN ANTONIO, TX
- Founded
- 2019
- Latest Form D
- $77M, Apr 2019
- Total capital
- $77M
- Federal grants
- None on recordNo awards found in SBIR/STTR, NIH, NSF or DoD records.
- Private capital raised
- $77M
- 1 Form D · last Apr 2019
- 91 months since last filing
- Federal contracts
- None on recordNo federal contract awards found.
- Granted patents
- 8
- 14 pending · first 2022
- Rank in peer group#16 of 222
Capital timeline
Latest events
- Private capital raisedForm D · SEC · 1st filing$77M
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#16 · top 7%
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- David SiskResearcherExecutive Officer, DirectorLinked by 1 patent
- Gary GillExecutive OfficerNamed in SEC Form D filings
- H.W. Cox, Jr. Ph.D.DirectorNamed in SEC Form D filings
- Jane BrownDirectorNamed in SEC Form D filings
- Robert RaymondDirectorNamed in SEC Form D filings
- Steven CobbDirectorNamed in SEC Form D filings
Show all 8 people
- W. George CoyleDirectorNamed in SEC Form D filings
- William LemmerExecutive Officer, DirectorNamed in SEC Form D filings
What it has protected
USPTO · 8 granted of 22- New patentSystem and Method of Treatment of Gas Contaminated with Hydrogen Sulfide and the Reduction of Hydrogen Sulfide Associated OdorUSPTOUS 12,746,506
- GrantedCo-current and Countercurrent Contactor for Immiscible FluidsUSPTOUS 12,458,940
- PendingReducing Slurry Emulsion And Foaming In Oxidation-reduction Sulfur Removal ProcessesUSPTOApplication 19198399
Show all 22 patent records
- System and Method of Treatment of Gas Contaminated with Hydrogen Sulfide and the Reduction of Hydrogen Sulfide Associated OdorSep 29, 2026 · US 12,746,506Granted
- Co-current and Countercurrent Contactor for Immiscible FluidsNov 4, 2025 · US 12,458,940Granted
- Reducing Slurry Emulsion And Foaming In Oxidation-reduction Sulfur Removal ProcessesAug 21, 2025 · Application 19198399Pending
- System and Method of Treatment of Hydrogen Sulfide Gas Released from a Pipeline or Air Pressure Release ValveJul 31, 2025 · Application 18428116Pending
- Reducing Slurry Emulsion And Foaming In Oxidation-reduction Sulfur Removal ProcessesMay 6, 2025 · US 12,291,664Granted
- System and Method of Treatment of Gas Contaminated with Hydrogen Sulfide and the Reduction of Hydrogen Sulfide Associated OdorApr 3, 2025 · Application 18478351Pending
- Gas Treatment Unit, Redox System and Method for Desulfurization of Gases Including BiogasFeb 6, 2025 · Application 18696192Pending
- Gas Purification Apparatus with Eductor Reduction Unit and MethodNov 14, 2024 · Application 18741115Pending
- Gas Treatment Unit, Redox System and Method for Desulfurization of Gases Including BiogasOct 17, 2024 · Application 18752056Pending
- Gas Purification Apparatus and MethodOct 15, 2024 · US 12,115,495Granted
- Gas Purification Apparatus with EductorsOct 3, 2024 · Application 18740982Pending
- Gas Purification Apparatus and MethodMar 19, 2024 · US 11,931,687Granted
- Separating Sweet Gas From A Sour Gas StreamOct 24, 2023 · US 11,795,409Granted
- Separating Sweet Gas From A Sour Gas StreamOct 10, 2023 · US 11,781,081Granted
- Well-bore Energy Storage UnitNov 22, 2022 · US 11,506,027Granted
- Redox with Relative Hydrogen Sensors and MethodApplication 19579373Pending
- Gas Treatment Unit, Redox System And Method For Desulfurization Of Gases Including BiogasApplication PCTUS2023073011Pending
- Gas Purification Apparatus With Eductor Reduction Unit And MethodApplication PCTUS2025032156Pending
- Redox With Relative Hydrogen Sensors And MethodApplication PCTUS2025051469Pending
- Gas Purification Apparatus And MethodApplication PCTUS2023061722Pending
- Co-current And Counter Contactor For Immiscible FluidsApplication PCTUS2022052940Pending
- Redox with Relative Hydrogen Sensors and MethodApplication 63711656Pending
Related companies, and why
- Dandelion EnergySimilar federal contract value in Clean tech · null in contracts
- Samsara EcoSimilar federal contract value in Clean tech · null in contracts
- WASTE HUB, LLCSimilar federal contract value in Clean tech · null in contracts
- Espira, Inc.Similar federal contract value in Clean tech · null in contracts
- Blaze Barrier, Inc.Similar federal contract value in Clean tech · null in contracts
- HelioVolt CorpSimilar 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 .