General Nano LLC

Cincinnati, OH · Defense · Private

Electromagnetic shielding materials and enclosures using carbon nanomaterials and conductive composites for military electronics protection

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Updated Oct 23, 2026 · generalnanollc.com

Sector: Defense
Headquarters: Cincinnati, OH
Latest Form D: $700K, Jun 2022
Total capital: $16.2M

Federal grants: $3.5M; 5 awards · 2017–2025; Rank in peer group#25 of 34
Private capital raised: $4.2M; 3 Form D · last Jun 2022; 53 months since last filing
Federal contracts: $8.6M; 23 awards · Defense, NASA; Rank in Defense#427 of 1442
Granted patents: 7; 18 pending · first 2020; Rank in peer group#6 of 34

Capital timeline

Latest events

Jul 2025Federal contractDefense · Research And Development.$236K
Jun 2025Federal grantDefense · Phase I · Research And Development.$138K
Aug 2024Federal grantDefense · Phase I · Sbir/sttr Phase I Research & Development: Lightweight Material Solution For Lightning Survivability$149K
Aug 2024Federal contractDefense · Sbir/sttr Phase I Research & Development: Lightweight Material Solution For Lightning Survivability$149K
Feb 2023Federal grantDefense · Phase II · Ultra-Lightweight Protection Shielding Material Against Electromagnetic Interference/Electromagnetic Pulse for Avionics$200K
Feb 2023Federal contractDefense · SBIR 2 N211-015$1M
Sep 2022Federal contractDefense · Lightweight Shielding Material For Aircraft Survivability For Countering Directed Energy Weapon Threats$200K
Jun 2022Private capital raisedForm D · SEC · 3rd filing$700K
Nov 2018Private capital raisedForm D · SEC · 2nd filing$2.5M
Oct 2016Private capital raisedForm D · SEC · 1st filing$1M

Show 21 earlier federal awards

Jul 2021Federal contractDefense · SBIR PH1 N211-027 Topic "ultra-lightweight Carbon Nanostructured Materials For Electromagnetic" Contract Award$235K
Dec 2020Federal contractDefense · Phase II Subscale Evaluations$714K
Jun 2019Federal grantDefense · Phase II · A New Class of Lightweight, Multi-functional Protective Materials$2.9M
Nov 2018Federal contractDefense · Hardening Technologies For Air Platforms And Cruise Missile Systems$150K
Jul 2018Federal contractDefense · A New Class Of Lightweight, Multifunctonal Material For Directed Energy Protection And Nuclear Effec$750K
Sep 2017Federal grantDefense · Phase I · Out-of-Autoclave Composite Curing Utilizing Nanostructured Heaters$124K
Sep 2017Federal contractDefense · Igf::ot::igf - Department Of Defense (DOD) Rapid Innovation Fund (rif) Broad Agency Announcement (baa) Technical Requirement Entitled, "a New Class Of Lightweight, Multifunctional Material For Electromagnetic Compatibility"$966K
Jun 2017Federal contractDefense · Igf::ot::igf A New Class Of Lightwieght, Multifunctional Material For Direct Energy Protection And Nuclear Effects$150K
Feb 2014Federal contractDefense · Igf::ot::igf Manufacturing Next Generation Multifunctional Carbon Fiber Laminated Composites For Air Vehicles$1.5M
Aug 2013Federal contractDefense · Igf::ot::igf Thermal Interface Materials For Power System Components$149K
May 2013Federal contractDefense · Advanced Carbon Nanotube Forms For Composite Structural Applications$749K
Apr 2013Federal contractNASA · Igf::ot::igf SBIR Phase III -- Carbon Nanotube Composite Precursors$75K
Oct 2012Federal contractDefense · Progress Report$80K
Sep 2012Federal contractDefense · Research And Development In The Physical, Engineering, And Life Sciences (except Biotechnology)$500K
Oct 2011Federal contractDefense · SBIR I - General Nano$100K
Oct 2011Federal contractDefense · Research And Development In The Physical, Engineering, And Life Sciences (except Biotechnology)$150K
May 2011Federal contractDefense · Research And Development In The Physical, Engineering, And Life Sciences (except Biotechnology)$100K
Feb 2011Federal contractNASA · The Purpose Of The Proposal Is To Apply Multifunctional Carbon Electromagnetic Materials, Including Carbon Nanotube Electrical Thread (replaces Copper Wire) And Carbon Nanosphere Chain Magnetic Material (replaces Iron Cores), To Build Lightweight, High-performance Carbon Electric Motors And Actuators For Aircraft And Spacecraft. Incorporating These Nanomaterials Will Replace Heavy And Bulky Motors That Are Constrained By High Mass And Inertia, And Limited Rotor Speed And Acceleration. The Techn$100K
Oct 2010Federal contractDefense · R&d SBIR Topic N102-121$80K
Jun 2009Federal contractDefense · Super Long Carbon Nanotubes For Electrical Fiber$300K
Jan 2008Federal contractDefense · Super Long Carbon Nanotubes For Manufacturing Electrical Fib$100K

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.

Federal first

105months

from General Nano LLC’s first federal award to its first private round.

First federal award · Jan 2008: Defense · $100K
First Form D · Oct 2016: $1M · 1st Form D
Awards before first raise: 13 awards

An association in public records, not a cause or a prediction.

Standing among 34 peers

Line = median

Defense · Material

Federal grantsBelow median
Granted patents#6 · top 18%

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

Joseph Edward SprengardResearcherExecutive Officer, DirectorLinked by 1 patent
Jeb Edward HeadDirectorNamed in SEC Form D filings
Mark Edward SchulzExecutive Officer, DirectorNamed in SEC Form D filings
Vesselin Edward ShanovExecutive Officer, DirectorNamed in SEC Form D filings
William Edward NoackDirectorNamed in SEC Form D filings

What it has protected

USPTO · 7 granted of 25

Sep 23, 2025GrantedElectrically-conductive Broad GoodUSPTOUS 12,421,653
Mar 6, 2025PendingConductive Broad Good Providing Lightning Strike ProtectionUSPTOApplication 18594402
Apr 30, 2024GrantedLight-weight, Highly-conductive Repair MaterialUSPTOUS 11,969,963

Show all 25 patent records

Electrically-conductive Broad GoodSep 23, 2025 · US 12,421,653Granted
Conductive Broad Good Providing Lightning Strike ProtectionMar 6, 2025 · Application 18594402Pending
Light-weight, Highly-conductive Repair MaterialApr 30, 2024 · US 11,969,963Granted
Conductive Broad Good Providing Lightning Strike ProtectionMar 5, 2024 · US 11,919,656Granted
Heated Composite Tool And Method For Building And UseApr 25, 2023 · US 11,633,881Granted
Carbon Nanotube Sheet Structure And Method For Its MakingMar 24, 2022 · Application 17334451Pending
Carbon Nanotube Sheet Structure And Method For Its MakingJun 1, 2021 · US 11,021,368Granted
Carbon Nanotube Sheet Structure And Method For Its MakingJun 1, 2021 · US 11,021,369Granted
Carbon Nanomaterial Composite Sheet And Method For Making The SameSep 1, 2020 · US 10,758,936Granted
Heating Blanket And Method For UseJul 30, 2020 · Application 16755281Pending
Carbon Nanotube Film Structure And Method For MakingJun 20, 2019 · Application 16323001Pending
Electrically-conductive Heating ElementJan 11, 2018 · Application 15548518Pending
Method For Making A Catalyst Metal Substrate For Growth Of Carbon NanotubesMay 25, 2017 · Application 15323594Pending
Lightweight Electromagnetic Shielding StructureApplication 15737575Pending
Electrically-conductive Broad GoodApplication PCTUS2020058051Pending
Redundant Heating SystemsApplication PCTUS2019067148Pending
A Heating Blanket And Method For UseApplication PCTUS2018055364Pending
Conductive Broad Good Providing Lightning Strike ProtectionApplication PCTUS2018043069Pending
Carbon Nanotube Film Structure And Method For MakingApplication PCTUS2017045422Pending
Carbon Nanotube Sheet Structure And Method For Its MakingApplication PCTUS2017016657Pending
Carbon Nanomaterial Composite Sheet And Method For Making The SameApplication PCTUS2016064789Pending
Lightweight Electromagnetic Shielding StructureApplication PCTUS2016038347Pending
Electrically-conductive Heating ElementApplication PCTUS2016016380Pending
Carbon Nanotube Sheet Structure And Method For Its MakingApplication PCTUS2015042911Pending
Method For Making A Catalyst Metal Substrate For Growth Of Carbon NanotubesApplication PCTUS2015038809Pending

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Regulatory activity · Defense

Sector-level, not company-level

11 Jun 2026Danger Zone; Waters of Carr Creek and Whitehall Bay in the Vicinity of the Naval Support Activity AnnapolisEngineers Corps
13 Mar 2026Federal Acquisition Regulation; Federal Acquisition Circular 2026-01; IntroductionNational Aeronautics and Space Administration
13 Mar 2026Federal Acquisition Regulation: Trade Agreements ThresholdsNational Aeronautics and Space Administration
13 Mar 2026Federal Acquisition Regulation; Federal Acquisition Circular 2026-01; Small Entity Compliance GuideNational Aeronautics and Space Administration
27 Aug 2025Federal Acquisition Regulation; Federal Acquisition Circular 2025-06; Small Entity Compliance GuideNational Aeronautics and Space Administration
27 Aug 2025Federal Acquisition Regulation; Federal Acquisition Circular 2025-06; IntroductionNational Aeronautics and Space Administration

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 Oct 23, 2026. SBIR and STTR awards through Oct 21, 2026.