An inventor first.
106 technology filings, and counting.
106 technology filings (77 at Su-Kam, 25 at Su-Vastika, 4 personal AI filings) across India, the US and beyond — making Kunwer Sachdev the first Indian entrepreneur to patent in the power-backup industry. He doesn't talk about innovation. He builds it, protects it, and ships it.
The Plastic-Body Inverter (CHIC)
Why it mattered: Metal inverters were heavy, corrosion-prone and a shock hazard. Su-Kam engineered India's first plastic-body inverter.
Impact: India Today named it the 'Innovation of the Decade.' It reset the entire industry's design language.
Sine-Wave Inverter Technology
Why it mattered: Indian homes ran sensitive electronics on crude square-wave power. Su-Kam brought MOSFET, microcontroller and DSP sine-wave technology into everyday inverters.
Impact: Cleaner, safer power for millions of homes — and a new technical standard the whole industry followed.
Hybrid Solar PCU
Why it mattered: Solar needed to work with the grid and batteries seamlessly, years before it was mainstream in India.
Impact: One of India's first hybrid solar Power Conditioning Units — bringing affordable solar into ordinary homes, not just demo projects.
Solar Home Lighting & 'Home UPS'
Why it mattered: Off-grid and power-cut-prone homes needed reliable, all-in-one backup.
Impact: Su-Kam's Solar Home Lighting System and the 'Home UPS' category were adopted across the industry within a year.
Energy Storage (today, at Su-Vastika)
Why it mattered: Diesel generators and ageing lead-acid batteries are noisy, polluting and short-lived.
Impact: Lithium Battery Energy Storage Systems (BESS) and solar hybrids — the next chapter of the same mission.
India Today — "Innovation of the Decade"
Su-Kam's plastic-body inverter, the CHIC, was recognised by India Today as the Innovation of the Decade — a rare honour for an Indian-engineered consumer product.
The 77 patents filed at Su-Kam — and what became of them
Over 14 years, Su-Kam filed 77 patents across solar, UPS, and power electronics; most were still under examination when the company entered insolvency proceedings under the IBC. Kunwer Sachdev tells the full story of Su-Kam's rise and fall — and how the patents were lost — on his personal site. Read "The Rise and Fall of India's Inverter Man" →