Hoowaki, LLC

Greenville, SC · Founded 2008 · Materials · Private

High grip films produced using patented micro-surface technology that alters friction properties

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Updated · hoowaki.com

Sector
Materials
Headquarters
Greenville, SC
Founded
2008
Latest Form D
$500K offered, May 2018
Total capital
$2M
Federal grants
None on recordNo awards found in SBIR/STTR, NIH, NSF or DoD records.
Private capital raised
$2M
4 Form D · last May 2018
102 months since last filing
Federal contracts
None on recordNo federal contract awards found.
Granted patents
7
21 pending · first 2018
Rank in peer group#40 of 369

Capital timeline

20112012201320142015201620172018FEDERAL ↑EQUITY ↓Cumulative $3.8M1st Form D$2M2nd Form D$250K3rd Form D$1M4th Form D$500K
2011201320152017FEDERAL ↑EQUITY ↓Cumulative $3.8M1st Form D$2M

Latest events

  • Offering registeredForm D · SEC · 4th filing$500K
  • Offering registeredForm D · SEC · 3rd filing$1M
  • Offering registeredForm D · SEC · 2nd filing$250K
  • Offering registeredForm D · SEC · 1st filing$2M

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 369 peers

Line = median

Materials · Material

  • Granted patents#40 · top 11%

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
  • Ralph HulsemanResearcherExecutive Officer, DirectorLinked by 7 patents
  • Jim McClintockDirectorNamed in SEC Form D filings
  • John P WarnerDirectorNamed in SEC Form D filings
  • March P MaguireDirectorNamed in SEC Form D filings
  • Paul StricklerDirectorNamed in SEC Form D filings
  • Russel FloydDirectorNamed in SEC Form D filings
Show all 8 people
  • Stephen ThateDirectorNamed in SEC Form D filings
  • William P KingDirectorNamed in SEC Form D filings

What it has protected

USPTO · 7 granted of 28
  • PendingWiper Blade With MicrostructuresUSPTOApplication 19295218
  • PendingGripping Surface For Manufactured ArticlesUSPTOApplication 19253823
  • GrantedGripping Surface For Manufactured ArticlesUSPTOUS 12,370,696
Show all 28 patent records
  • Wiper Blade With MicrostructuresFeb 12, 2026 · Application 19295218Pending
  • Gripping Surface For Manufactured ArticlesOct 23, 2025 · Application 19253823Pending
  • Gripping Surface For Manufactured ArticlesJul 29, 2025 · US 12,370,696Granted
  • Microstructure Arrangement For Gripping Low Coefficient Of Friction MaterialsJun 2, 2022 · Application 17672049Pending
  • Microstructure Arrangement For Gripping Low Coefficient Of Friction MaterialsMar 15, 2022 · US 11,273,557Granted
  • Biological Material Sampling DeviceOct 28, 2021 · Application 17241914Pending
  • Microstructure Arrangement For Gripping Low Coefficient Of Friction MaterialsJan 12, 2021 · US 10,889,005Granted
  • Thin Film With High Grip MicrofeaturesOct 29, 2020 · Application 16392297Pending
  • Microstructured High Friction Surface For High Friction to Fabric, Yarn, And FibersOct 29, 2019 · US 10,458,053Granted
  • Microstructure Arrangement For Gripping Low Coefficient Of Friction MaterialsAug 13, 2019 · US 10,377,044Granted
  • System And Method For Extruding Parts Having MicrostructuresMar 6, 2018 · US 9,908,274Granted
  • Microstructure Arrangement For Gripping Low Coefficient Of Friction MaterialsFeb 15, 2018 · Application 15673727Pending
  • Proppant For Fracking FluidJan 23, 2018 · US 9,873,830Granted
  • Microstructured High Friction Surface For High Friction To Fabric, Yarn And FibersDec 24, 2015 · Application 14746296Pending
  • System and Method For Extruding Parts Having MicrostructuresOct 22, 2015 · Application 14755392Pending
  • System and Method For Extruding Parts Having MicrostructuresOct 22, 2015 · Application 14755256Pending
  • Multi-scale, Multi-functional Microstructured MaterialApplication PCTUS2011039905Pending
  • Wiper Blade With MicrostructuresApplication PCTUS2025041382Pending
  • Wiper Blade With MicrostructuresApplication 63681218Pending
  • A Gripping Surface For Manufactured ArticlesApplication PCTUS2023066244Pending
  • Biological Material Sampling DeviceApplication PCTUS2021029406Pending
  • Microstructured Surface Having Discrete Touch AestheticsApplication PCTUS2018048490Pending
  • Microstructure Arrangement For Gripping Low Coefficient Of Friction MaterialsApplication PCTUS2017046357Pending
  • Microstructure Arrangement For Gripping Low Coefficient Of Friction MaterialsApplication 62372896Pending
  • High Friction, Non-directional Surface For High Friction To Fabric, Yarn And FibersApplication 62014887Pending
  • Proppant For Fracking FluidApplication 61983311Pending
  • System And Method For Extruding Parts Having MicrostructuresApplication PCTUS2012026564Pending
  • Proppant For Fracking FluidApplication PCTUS2015026864Pending
  • Polymer Solutions IncSimilar federal contract value in Materials · null in contracts
  • Nirrin Technologies, Inc.Similar federal contract value in Materials · null in contracts
  • Luminus Holdings CorpSimilar federal contract value in Materials · null in contracts
  • LEONINE TECHNOLOGIES INC.Similar federal contract value in Materials · null in contracts
  • EcoSynthetix Inc.Similar federal contract value in Materials · null in contracts
  • SQ4D LLCSimilar federal contract value in Materials · null in contracts

Regulatory activity · Materials

Sector-level, not company-level

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 .