Hindustan Zinc has a total of 16 patents globally, out of which 6 have been granted. Of these 16 patents, more than 75% patents are active. India is where Hindustan Zinc has filed the maximum number of patents, followed by United States of America and Europe. Parallelly, India seems to be the main focused R&D centre and also is the origin country of Hindustan Zinc.
Hindustan Zinc was founded in the year 1966. The Company specializes in the exploration, mining and smelting of zinc, lead and other non-ferrous metals. The Company’s products include zinc ore, lead zinc concentrate, zinc metal, lead metal, cadmium metal, silver metal and sulfuric acid.
Do read about some of the most popular patents of Hindustan Zinc which have been covered by us in this article and also you can find Hindustan Zinc patents information, the worldwide patent filing activity and its patent filing trend over the years, and many other stats over Hindustan Zinc patent portfolio.
How many patents does the founder and the CEO of Hindustan Zinc have?
The founder and CEO Arun Misra has 0 patent.
How many patents does Hindustan Zinc have?
Hindustan Zinc has a total of 16 patents globally. These patents belong to 13 unique patent families. Out of 16 patents, 12 patents are active.
How Many Patents did Hindustan Zinc File Every Year?
Are you wondering why there is a drop in patent filing for the last two years? It is because a patent application can take up to 18 months to get published. Certainly, it doesn’t suggest a decrease in the patent filing.
| Year of Patents Filing or Grant | Hindustan Zinc Applications Filed | Hindustan Zinc Patents Granted |
| 2021 | – | 1 |
| 2020 | 1 | 1 |
| 2019 | 2 | 2 |
| 2018 | 2 | – |
| 2017 | 4 | – |
| 2016 | 4 | – |
| 2008 | 2 | 2 |
| 2002 | 1 | – |
How many Hindustan Zinc patents are Alive/Dead?
How Many Patents did Hindustan Zinc File in Different Countries?
Countries in which Hindustan Zinc Filed Patents
| Country | Patents |
| India | 10 |
| United States Of America | 2 |
| Europe | 2 |
| Germany | 1 |
Where are Research Centres of Hindustan Zinc Patents Located?
What Percentage of Hindustan Zinc US Patent Applications were Granted?
Hindustan Zinc (Excluding its subsidiaries) has filed 2 patent applications at USPTO so far (Excluding Design and PCT applications). Out of these 2 have been granted leading to a grant rate of 100.0%.
Below are the key stats of Hindustan Zinc patent prosecution at the USPTO.
Which Law Firms Filed Most US Patents for Hindustan Zinc?
| Law Firm | Total Applications | Success Rate |
| Kolisch Hartwell | 2 | 100.00% |
List of Hindustan Zinc Patents
| Hindustan Zinc Patents | Title |
| US10919924B2 | Treatment Of Antimony Bearing Residues For Production Of Potassium Antimony Tartrate |
| US10844551B2 | Method For Manufacturing Of Paver Blocks And Bricks From Industrial Waste |
| EP3192882B1 | Method For Production Of Potassium Antimony Tartrate By Utilizing Antimony Bearing Residues |
| EP3539938A1 | Method For Manufacturing Of Paver Blocks And Bricks From Industrial Waste |
| IN202011053111A | A Process For Simultaneous Recovery Of Ammonium Metavanadate, Vanadium Pentaoxide And Derivatives From Spent Catalysts |
| IN201811011937A | System For Scraping Of Silver From Cathode Plates |
| IN201811009823A | Method For Manufacturing Of Paver Block And Bricks From Industrial Waste |
| IN201711018400A | Method For Recovery Of Metal Values From Industrial Waste |
| IN201611020564A | Method For Utilization Of A Waste Residue For Construction Of Concrete And Mortar |
| IN201611001120A | Method And System For Production Of Potassium Antimony Tartrate By Utilizing Antimony Bearing Residues |
| IN201611001115A | Method For Production Of Zinc By Utilizing Lead Plant Slag |
| IN201611001122A | Method For Production Of Lead By Performing Dross Removal Procedures |
| WO2004055225A1 | A Process For Extraction Of Nickel From Low Grade Chromite Ore |
| DE602017005583T2 | Process For The Production Of Potassium Antimony Tartrate Using Antimony-Bearing Residue |
| IN271776B | A Process For The Recovery Of Valuable Base Metals From Mineral Beneficiation Process Tailings |
| IN271771B | A Process For Recovery Of Valuable Metals From Hot Gas Precipitator(Hgp) Dust |