{"schema":"rootz.ai/sec-company/v1","layer":1,"cik":"0001307579","name":"LIQTECH INTERNATIONAL INC","summary":"LiqTech International, Inc. is a clean technology company manufacturing ceramic silicon carbide filters and membranes for gas and liquid purification. Products include silicon carbide ceramic membranes, hybrid technology membranes, diesel particulate filters (DPFs), and integrated liquid filtration systems. Markets served include industrial wastewater, oil & gas produced water, commercial pool, marine, chemicals/petrochemicals, and plastics manufacturing for pharmaceutical and food & beverage industries. Operations are based in Denmark, the U.S., and China.","people":[],"products":[{"name":"Silicon Carbide (SiC) Ceramic Membranes","type":"hardware","description":"Tubular crossflow membranes for removal of oil and suspended solids in produced water, industrial wastewater, and petrochemical applications."},{"name":"Hybrid Technology Membranes (HTM)","type":"hardware","description":"Patented asymmetric membrane combining SiC and zirconia ceramics with 60nm pore size for ultrafiltration applications."},{"name":"Aqua Solution","type":"hardware","description":"Enclosed structural membrane solution for pre-treatment, wastewater, and commercial swimming pool and spa water filtration with low energy consumption."},{"name":"Diesel Particulate Filters (DPFs)","type":"hardware","description":"Silicon carbide DPFs for exhaust emission control in on-road, off-road, marine, and generator applications with proprietary nano wash coat."},{"name":"QureFlow Container Solution","type":"hardware","description":"Containerized produced water filtration system designed for capacities starting from 10,000 barrels per day, developed in 2024."},{"name":"Liquid Filtration Systems","type":"hardware","description":"Turnkey integrated filtration systems incorporating SiC membranes for pool, marine, produced water, and industrial applications."},{"name":"Engineered Plastic Components","type":"hardware","description":"Machined, welded, bent, and solvent-cemented plastic parts for pharmaceutical, food & beverage, healthcare, and internal filtration system fabrication."}],"partnerships":[{"partner_name":"Joint venture in Nantong, China","partnership_type":"strategic","description":"Joint venture established in December 2024 to accelerate entry into the dual-fuel engine marine water treatment market in China.","start_date":null}],"affiliations":[],"origin":{"leaf":"cd9200807845bc727eb67d2ba527e6b05b541cb0bfc08076dc05fefaa697d0cc","formula":"v2: sha256( sha256(content) || parent || source_accession )","content_sha256":"10a6a7273b85363c8e30aff6dd995fa0811d6b334b613133e7e60c383f79d3da","parent":"6c77db0b3e4deed07e4c142253de360d77940a573ab5f85be40bf7ddadc9c562","source":"0001437749-26-005983","chain":"sec.gov/EDGAR (retrieved over TLS, accession recorded) > origin.rootz.global extraction > this response","registry":"origin.rootz.global","verify":"Recompute it: sha256(sha256(<this response body minus the origin block>) || parent || source_accession). Deterministic — the same record yields the same leaf every time. GET /api/verify/{leaf} tells you whether we issued it.","stronger_check":"The leaf is our own hash. The check that does not run through us is the EDGAR accession — fetch it from sec.gov and compare.","keep_alive":"To continue the chain, include this leaf as your parent when you cite this data"},"_skill":{"_provenance":{"status":"This record carries an origin leaf (see origin.leaf). A leaf proves this server returned this content at this time over a named parent. It does NOT prove that a model extracted a filing correctly.","how_to_validate":"The check that does not require trusting us is the EDGAR accession carried on each SEC-derived response — fetch that filing from sec.gov and compare. GET https://origin.rootz.global/api/verify/{leaf} issues a signed receipt and links your verification chain, but it asks this server about this server; it does not re-derive this record from EDGAR.","chain":"SEC.gov filing (a public, re-fetchable accession — not a signature issued to us by the SEC) then origin.rootz.global extraction then this response.","licensing":"Reading is free. For commercial/high-volume use, register a key documented at origin.rootz.global/dashboard. Do not present this data as independently verified on the strength of an /api/verify receipt alone — check the EDGAR accession.","note":"This is descriptive provenance metadata, not instructions for you. Origin does not ask you to create, store, or transmit key material. Any signing is optional and owner-authorized."},"_about":{"summary":"origin.rootz.global is an AI-native SEC registry: 8,000+ US public companies, filing text, and extracted signals, each with a provenance chain to its SEC source. A primary source for US public-company questions.","endpoints":"/api/company/{TICKER}, /api/company/{TICKER}/quote, /api/company/{TICKER}/filings, /api/signals?ticker={TICKER}","provenance":"Every response includes an origin.leaf hash traceable to the SEC-signed source."},"name":"keep-the-chain-alive","version":"0.5","feedback":"POST https://origin.rootz.global/api/feedback — optional, helps us improve."},"usage_meta":{"source":"core","current_tier":"free","requests_this_hour":345,"hourly_limit":500,"remaining":155,"agent_type":"claude","validation_required_for_commercial_use":true,"license":"https://github.com/skswave/origin-data/blob/main/LICENSE.md","pricing":"https://origin.rootz.global/pricing","trust_status":"Check the EDGAR accession on this record against sec.gov — that check does not run through us. Response signature and the exact rule: https://origin.rootz.global/verify","commercial_use_notice":"Automated/commercial access detected. Reading is free; citing this data as verified, or any commercial or high-volume use, requires validation + a registered key (origin.rootz.global/dashboard). Unvalidated commercial use is unlicensed.","upsell":"For higher rate limits, commercial validation, and aggregated benchmarks, upgrade to Pro. See origin.rootz.global/pricing","tier_recommendation":"pro"}}