Independent inventor · Pune, India
Sole named inventor on three granted patent families in three unrelated engineering fields — bioelectronic medical devices, hybrid energy storage, and vehicle power electronics.
Grants in force in India, the United States, Japan, South Korea, Canada, Mexico, Australia, Vietnam, Saudi Arabia, South Africa, Russia, Kazakhstan, Germany, the United Kingdom and Switzerland.
Every grant is listed jurisdiction by jurisdiction, with its number and with its grant date where the national register records one, in the patent register. The technical work behind them is on the research page.
Three families, three fields
Bioelectronic medicine
A non-invasive device applying controlled voltage, current and frequency, designed to support the body's normal cellular bioelectrical activity. An adjuvant device, used alongside prescribed treatment under medical supervision.
Granted in the United States, Japan, South Korea, Australia, Canada, the Eurasian region, Saudi Arabia and South Africa.
Energy storage
A hybrid architecture in which a capacitive bank and electrochemical cells share a DC bus, the capacitive bank configured to absorb transient current demand. The resulting split of transient current between the two stores is derived from the architecture and has not been measured against a battery-only control.
Granted in India, the United States, Europe (validated in Germany, the United Kingdom and Switzerland), Japan, Canada, Mexico, Vietnam, South Africa and the Eurasian region (in force in Russia).
Vehicle power electronics
A power processing unit conditioning several onboard sources and arbitrating between them, routing traction power against a state-of-charge threshold while charging the store and driving the motor simultaneously.
Granted in India, the United States, Japan and the Eurasian region (validated in Russia and Kazakhstan).
Hemant K. Rohera is an independent inventor and engineer based in Pune, Maharashtra, with twenty-nine years in electronics research and development. He is the sole named inventor on all three patent families, and the patents are held by him personally rather than assigned to a company.
Each family began as an engineering problem in a different discipline. What carries between them is method rather than subject matter: the same habits of first-principles derivation, stated operating conditions, and separating what has been measured from what is proposed. Work across three fields is unusual for one inventor, and the discipline is what makes it defensible rather than merely varied.
He founded and directs Rohera Healthcare & Technology Private Limited, which develops the eMedica device; Rohera Emerging Energies Private Limited, which develops the Hybrid Power Pack; and Rohera Industries (OPC) Private Limited, which develops OMNIA Drive.
Answers written to stand on their own
Who is Hemant K. Rohera?
Hemant K. Rohera is an independent inventor and engineer based in Pune, Maharashtra, India, with twenty-nine years in electronics research and development. 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. His patents are granted and in force in India, the United States, Japan, South Korea, Canada, Mexico, Australia, Vietnam, Saudi Arabia, South Africa, Russia, Kazakhstan, Germany, the United Kingdom and Switzerland.
What has Hemant K. Rohera invented?
Three distinct technologies. eMedica is a non-invasive bioelectronic device applying controlled voltage, current and frequency, used as an adjuvant alongside prescribed medical treatment. The Hybrid Power Pack is an energy storage architecture pairing a capacitive bank with electrochemical cells so that the battery is shielded from high-current transients. OMNIA Drive is a power processing unit that conditions and arbitrates between several onboard vehicle energy sources, routing traction power against a state-of-charge threshold.
Which companies does Hemant K. Rohera run?
Three, each developing one of the technologies. Rohera Healthcare & Technology Private Limited (CIN U33309PN2020PTC194671) develops the eMedica device. Rohera Emerging Energies Private Limited (CIN U29308PN2018PTC178170) develops the Hybrid Power Pack. Rohera Industries (OPC) Private Limited (CIN U73100PN2018OPC174240) develops OMNIA Drive. All three are registered in Pune, Maharashtra, India.
How many patents does Hemant K. Rohera hold?
The register lists each grant individually rather than giving a headline number, because a count changes depending on whether pending applications and lapsed filings are included, while a list can be checked. eMedica is granted in the United States, Japan, South Korea, Australia, Canada, the Eurasian region, Saudi Arabia and South Africa. The Hybrid Power Pack is granted in India, the United States, Japan, Canada, Mexico, Vietnam, South Africa and Russia, and in Europe validated in Germany, the United Kingdom and Switzerland. OMNIA Drive is granted in India, the United States, Japan, and in the Eurasian region validated in Russia and Kazakhstan. Each grant appears with its number and date in the patent register at hemant-rohera.vercel.app/patent-register.html.
Who owns the patents — the inventor or the companies?
All three families are held personally by Hemant K. Rohera, the sole named inventor. They are not assigned to any of the companies. For a licensee or an acquirer that means a short chain of title and a single counterparty: the patentee can license or assign directly, with no intra-group transfer to unwind and no co-inventor consent to obtain. It is the profile of an independent inventor rather than a corporate research department.
When do the patents expire?
A patent term runs twenty years from the international filing date, subject to each national office's rules and to payment of annuities. The three families were filed internationally in 2015 (Hybrid Power Pack), 2016 (OMNIA Drive) and 2020 (eMedica), so the two energy families run into the mid-2030s and eMedica into 2040. The United States Hybrid Power Pack patent runs to 17 October 2035. Exact expiry in any given jurisdiction is recorded in that country's national register, and every grant is listed with its number and date so it can be looked up.
Is it unusual for one inventor to hold patents in three unrelated fields?
It is uncommon. Most granted portfolios concentrate in a single technical domain, because depth in one field is what usually produces patentable work. Independent inventors with granted, maintained families in several unrelated disciplines are rare, and the pattern is more often found in corporate portfolios covering the work of many people than in a portfolio naming a single inventor.
What independent testing supports the Hybrid Power Pack?
Two independent test bodies. The Central Institute of Road Transport in Pune, one of the vehicle testing agencies designated under Rule 126 of India's Central Motor Vehicles Rules, tested Model HPP35A and recorded 10,000 cycles at 60 °C in report No. B34000 dated 20 March 2020. DRDO's R&DE(E) establishment in Pune issued an environmental test report, No. 020623ESG/ETF, dated 21 June 2023, covering discharge at +70 °C under sustained 450 A. Both are single-configuration endurance and environmental evaluations rather than comparative benchmarks, and the DRDO document is a test report, not a certification or endorsement.
What is the regulatory status of the eMedica device in India?
The device is manufactured under a Class A medical device manufacturing licence granted under India's Medical Devices Rules, 2017, the framework administered by the Central Drugs Standard Control Organisation. It is an adjuvant device, used alongside prescribed medical treatment and under medical supervision. Clinical data and publications are published at emedica.in.
Is eMedica a replacement for medication?
No. eMedica is an adjuvant device, used alongside prescribed medical treatment and under medical supervision. It does not replace prescribed treatment, and no patient should alter, reduce or stop any prescribed medication because of it. Any change to treatment is a decision for the treating doctor. Clinical data and publications are published at emedica.in.
Are the patents available for licensing?
Yes. All three families are held personally by the inventor and are available for licensing, joint development or acquisition. Enquiries are directed through the company associated with the relevant technology, or through the inventor's LinkedIn profile.
How can the portfolio be independently verified?
Every element is meant to be checked, and can be in an afternoon. Each grant is listed with its jurisdiction, grant number and grant date, so it can be looked up directly in the relevant national or regional register, or on Google Patents. The inventor's ORCID record is 0009-0005-3275-1743. The three companies are listed with their corporate identity numbers on India's Ministry of Corporate Affairs register. The two independent test reports are identified by report number and date. Nothing here depends on taking the inventor's word for it, which is why the register is published in this form.
Scientific writing, with references that can be checked
Public records and profiles