Patent intelligence · Companies
Company patent strength
Non-educational filers ranked by their patent portfolio. Grant rate and lapsed share expose where high filing volume is not matched by granted patents. Domestic filers lead — toggle to foreign applicants to see who is entering the Indian market.
Free to browse the ranking. Sign into open a filer's full profile — inventors, filing trend and quality index. See how we rank.
Why this page exists — and how to read it
Filing volume and IP quality are different things. This leaderboard ranks non-educational filers by portfolio, but the grant-rate and lapsed sorts are where the judgement lives: they separate companies whose filings survive examination from those accumulating paper.
- Investors
- High grant rate on steady filing usually means a real R&D engine; big volume with a high lapsed share is a red flag worth asking about.
- Founders & operators
- These are the incumbents and potential acquirers in your space — open a filer to see the walls you'd build against.
- Corporate & R&D
- Benchmark competitors' portfolios and grant rates; toggle to foreign to watch who is entering the Indian market.
💬 The grant-rate sort applies a 20-filing floor so tiny portfolios can't top the list.
3,207 foreign filers with 5+ patents · page 65
| # | Filer | Patents↓ | Granted↓ | Lapsed↓ | Pending↓ | Active |
|---|---|---|---|---|---|---|
| 3201 | ZERRO POWER SYSTEMS | 5 | 00% | 0 | 5 | 2025–2026 |
| 3202 | ZHEJIANG WEIPAI PACKAGING EQUIPMENT | 5 | 00% | 0 | 5 | 2023–2025 |
| 3203 | ZHEJIANG ZEEKR INTELLIGENT TECHNOLOGY | 5 | 00% | 0 | 5 | 2024–2026 |
| 3204 | ZHENGZHOU ZHONGYUAN SPANDEX ENGINEERING TECHNOLOGY | 5 | 00% | 0 | 5 | 2025–2025 |
| 3205 | ZHENHAI PETROCHEMICAL JIANAN ENGINEERING | 5 | 120% | 0 | 4 | 2022–2025 |
| 3206 | ZILLOW | 5 | 00% | 2 | 3 | 2022–2023 |
| 3207 | ZYMEWORKS | 5 | 00% | 0 | 5 | 2022–2022 |
Educational institutes are excluded — see the institute leaderboard. Attribution is by patent assignee record; a jointly-owned patent is credited to each co-owner, so a co-filed patent counts for every company on it. "Lapsed" = abandoned, withdrawn, deemed-withdrawn or refused; "Pending" = awaiting examination or in prosecution. Want to filter by technology or value category? Browse the filer explorer →
Rankings use patent-registry status (grant rate, examination, claim depth) as a quality proxy — directional, not advice; see methodology. Read the ranking methodology →