Hemant K. Rohera — Independent Inventor: three granted patent families

Hemant K. Rohera is an independent inventor and engineer based in Pune, India. He is the sole named inventor on three granted patent families in three unrelated engineering fields — bioelectronic medical devices, hybrid energy storage and vehicle power electronics — with grants in force across India, the United States, Japan, South Korea, Canada, Mexico, Australia, Vietnam, Saudi Arabia, South Africa, Germany, the United Kingdom and Switzerland, together with Eurasian grants validated in Russia and Kazakhstan.

ORCID iD: 0009-0005-3275-1743

The method

The usual engineering response to a system under strain is to change what it is made of — a better cathode, a better molecule, a better alloy. That answer is often right. It is not the only one, and it is not always the one that reaches the field first.

A lithium cell ages under high current for reasons that are largely physical rather than chemical: resistive heat rises with the square of current, and plating is driven by local overpotential. Both follow from the conditions the cell is operating under. Improve the chemistry and you raise the threshold. Deliver the current differently and the cell may never approach it.

The same reasoning, applied to a vehicle, says condition and arbitrate between the energy sources already on board rather than fitting a larger battery. Applied to living tissue, it says the cell's transmembrane potential is a real physiological variable, and supporting the body's normal bioelectrical activity is a lever that works alongside medicine.

Three fields, one discipline: getting electrical energy where it is wanted, in the form it is wanted, into something that resists it. The method transfers between them. Evidence does not — each field is proved on its own terms.

eMedica — A Medical Therapeutic Device

Controlled voltage, current and frequency applied non-invasively, designed to support the body's normal cellular bioelectrical activity. An adjuvant device, used alongside prescribed medical treatment under medical supervision. PCT/IB2020/055292; priority IN 201921036412, 10 September 2019.

JurisdictionGrantGranted
United StatesUS 12,226,18318 Feb 2025
JapanJP 761190126 Dec 2024
South KoreaKR 10-295477515 Apr 2026
AustraliaAU 20203464202 Apr 2026
CanadaCA 31503487 Oct 2025
EurasianEA 4414626 Jul 2023
Saudi ArabiaSA 1812223 Oct 2024
South AfricaZA 2022/0407325 Jan 2023

Under examination: Europe (EP 4041064). Pending: Malaysia, New Zealand, Singapore, the United Arab Emirates and the Philippines. The Indian application is pending.

Hybrid Power Pack

A dual-storage architecture in which an electric double-layer capacitor bank absorbs the transient — crank, acceleration, regenerative pulse — so the electrochemical cells receive a clamped current rather than the raw duty cycle. Chemistry carries the steady-state energy; architecture carries the transient. PCT/IB2015/056108; priority IN 2626/MUM/2015, 10 July 2015.

JurisdictionGrantGranted
IndiaIN 301517—
United StatesUS 10,523,01931 Dec 2019
EuropeEP 332059519 Jan 2022
JapanJP 664488310 Jan 2020
CanadaCA 299152728 Feb 2023
MexicoMX 37726311 Oct 2020
VietnamVN 4045514 Jun 2024

European validation: Germany, the United Kingdom and Switzerland. Independent evaluation: Central Institute of Road Transport, Pune — 10,000 cycles at 60 °C, Model HPP35A, report No. B34000, 20 March 2020. DRDO R&DE(E), Pune — environmental test report No. 020623ESG/ETF, 21 June 2023. Both are test reports, described here as what they are.

OMNIA Drive — A Power Generating System and Method for a Vehicle

A power processing unit that conditions several onboard energy sources at once and routes traction power against a state-of-charge threshold, charging the store and driving the motor simultaneously. Five stages: sense, compare, boost, synthesise, deliver. PCT/IB2016/055563; priority IN 3649/MUM/2015, 25 September 2015.

JurisdictionGrantGranted
IndiaIN 4776136 Dec 2023
United StatesUS 11,117,47614 Sep 2021
JapanJP 710962321 Jul 2022
EurasianEA 03659427 Nov 2020

Eurasian validation: Russia and Kazakhstan.

How claims are stated

Every figure carries its conditions in the same sentence, and every claim carries its evidence status. Measured — obtained on this hardware, by a named body, with a report number and date. Derived — follows from stated assumptions; clamping continuous current from 1.0C to 0.3C reduces the resistive heating term by (0.3/1.0)² = 0.09, by Joule's law. Literature — published independent findings on comparable systems, cited to source. Proposed — a mechanism hypothesis consistent with established science but not demonstrated for a specific device; the word is never dropped for brevity.

Selected writing

Technical and licensing notes published under this byline. Each states its evidence status inline: measured on this hardware, derived by arithmetic, drawn from literature on comparable systems, or proposed.

On the portfolio and how to read evidence
What a granted patent family actually protects, and the five questions a licensee should ask
How I verify a technical claim before publishing it: the four-layer rule
Reading a test report: what the CIRT and DRDO numbers mean, and what they do not
Who is Hemant Rohera? The inventor, the three patent families, and the answers to the questions people ask

Energy storage
The battery you already have: what current clamping does, and what it does not
What makes hybrid energy storage hard: sizing, power conversion, control and protection
Average state of charge versus depth of discharge: which dial actually buys battery life?

Vehicle power electronics
Multi-source power conditioning: the arbitration problem nobody wants to own
One inventor, three fields: what actually transfers between bioelectronics, energy storage and vehicle power
Can you harvest the Earth's magnetic field? What the physics allows, and what it does not

Bioelectronics and evidence
Designing an evidence pathway for an adjuvant device

Energy and environment
What happens to the CO2 after you capture it
Carbon capture, clean energy and smarter cities

The complete patent register — every jurisdiction with its grant number and grant date.

Licensing

All three families are available for licensing, assignment or joint development. Claim sets, prosecution histories and independent test reports are available under NDA. Enquiries from corporate development, licensing and R&D functions are welcome.

Hemant K. Rohera — Independent Inventor, Pune, Maharashtra, India
Rohera Healthcare & Technology Pvt. Ltd. · Rohera Emerging Energies Pvt. Ltd. · Rohera Industries (OPC) Pvt. Ltd.
info@emedica.in · +91 98907 99173 · +91 86691 14143

Patent status changes over a twenty-year term. Verify any entry against the relevant national register before relying on it. Nothing on this page is an offer, or a representation as to validity, scope or enforceability.

eMedica is an adjuvant medical device intended for use alongside prescribed medical treatment, under medical supervision. It does not replace prescribed treatment and is not a cure for any condition. Regulatory status: manufacturing licence MFG/MD/2023/000926 (Form MD-5), device Class A, granted in India under the Medical Devices Rules, 2017, the framework administered by the Central Drugs Standard Control Organisation, and issued by the Food & Drug Administration, Maharashtra. Consult your doctor before making any change to your treatment.

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Who is Hemant Rohera? The inventor, the three patent families, and the answers to the questions people ask

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