PHYTOSTONE LLC
Biochar-enriched mineral matrix ceiling tiles for carbon sequestration in buildings
- Sector
- Materials
- Total capital
- $294K
- Federal grants
- $294K
- 1 award · 2023
- Rank in peer group#9 of 123
- Private capital raised
- None on recordNo Form D filings on SEC EDGAR. Some raises are not filed.
- Federal contracts
- None on recordNo federal contract awards found.
- Granted patents
- 1
- 2 pending · first 2025
- Rank in peer group#21 of 123
Capital timeline
Latest events
- Federal grantNSF · Phase I · SBIR Phase I: A Novel Carbon-Sequestering Biomaterial for Dropped Ceiling Tiles$294K
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 123 peers
Line = medianMaterials · Material
- Federal grants#9 · top 7%
- Granted patents#21 · 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
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
Claim this profile to add your teamWhat it has protected
USPTO · 1 granted of 3- PendingCarbon Negative Cementitious Composition And Building MaterialsUSPTOApplication 19383927
- GrantedCarbon Negative Cementitious Composition And Building MaterialsUSPTOUS 12,492,148
- PendingCarbon Negative Cementitious Composition Based On An Mg-comprising Binder And Building MaterialsUSPTOApplication PCTUS2025046389
Related companies, and why
- METASEISMIC, INC.Similar federal contract value in Materials · null in contracts
- CHECKERSPOTSimilar federal contract value in Materials · null in contracts
- LOOP CO2, INC.Similar federal contract value in Materials · null in contracts
- CycladexSimilar federal contract value in Materials · null in contracts
- ARGIL, INC.Similar federal contract value in Materials · null in contracts
- UltraCell Insulation, LLCSimilar federal contract value in Materials · null in contracts
Regulatory activity · Materials
- Eliminating Regulations Establishing Fellowships in Laboratory Standardization and Testing for Foreign CitizensNational Institute of Standards and Technology
- Eliminating Obsolete Marking Requirements for Toy, Look-Alike, and Imitation FirearmsNational Institute of Standards and Technology
- Eliminating Obsolete Regulations Related to the Advanced Technology Program and the Technology Innovation ProgramNational Institute of Standards and Technology
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 .