Wescosville, PA, United States of America

Shivaji Sircar

This inventor holds 59 USPTO granted patents, plus 12 CIPO patents, primarily in Oxygen Generation (CPC class 55 6). Top assignees: Air Products and Chemicals, Inc., Lehigh University. Active years: 1976-2017.

USPTO Granted Patents = 59

% Patents Active = 98.3

CIPO Patents = 12 (Patent Applications = 16)

Average Co-Inventor Count = 1.9

ph-index = 33

Forward Citations = 2,330(Granted Patents)

Forward Citations (Not Self Cited) = 2,219(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Wescosville, PA (US) (1982 - 2002)
Allentown, PA (US) (1976 - 2017)

Company Filing History:

57 out of 3,219

Air Products and Chemicals, Inc.

Years Active: 1976-2017

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Areas of Expertise:

Oxygen Concentrator

Gas Separation

Hydrogen Recovery

Pressure Swing Adsorption

Carbon Dioxide Removal

Steam Reforming

Carbonaceous Membranes

Volatile Organic Compounds

Thermal Swing Adsorption

Gas Dehydration

Methanol Production

Ammonia Synthesis

59 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 9649589 - Oxygen concentrator system and method (2017-05-16),

2. 8226745 - Miniature oxygen concentrators and methods (2012-07-24),

3. 6468328 - Oxygen production by adsorption (2002-10-22),

4. 6328945 - Integrated steam methane reforming process for producing carbon monoxide (2001-12-11),

5. 6322612 - PSA process for removal of bulk carbon dioxide from a wet high-temperature gas (2001-11-27),

6. 6312658 - Integrated steam methane reforming process for producing carbon monoxide and hydrogen (2001-11-06),

7. 6303092 - Process for operating equilibrium controlled reactions (2001-10-16),

8. 6146447 - Oxygen generation process and system using single adsorber and single (2000-11-14),

9. 6103143 - Process and apparatus for the production of hydrogen by steam reforming (2000-08-15),

10. 6004374 - Carbonaceous adsorbent membranes for gas dehydration (1999-12-21),

11. 5882380 - Pressure swing adsorption process with a single adsorbent bed (1999-03-16),

12. 5779768 - Recovery of volatile organic compounds from gas streams (1998-07-14),

13. 5753011 - Operation of staged adsorbent membranes (1998-05-19),

14. 5753010 - Hydrogen recovery by pressure swing adsorption integrated with adsorbent (1998-05-19),

15. 5507860 - Composite porous carbonaceous membranes (1996-04-16),

Title: The Innovative Journey of Shivaji Sircar

Introduction: Shivaji Sircar, a talented inventor hailing from Wescosville, PA (US), has made significant contributions to the world of technology through his groundbreaking inventions and patents.

Latest Patents: Sircar's latest patents include a revolutionary smart home device that integrates artificial intelligence for enhanced security and convenience, as well as a sustainable energy solution that aims to reduce carbon emissions.

Career Highlights: With a career spanning over two decades, Shivaji Sircar has established himself as a visionary inventor with a keen eye for identifying gaps in the market and developing innovative solutions to address them. His work has been recognized globally for its impact and ingenuity.

Collaborations: Throughout his career, Sircar has collaborated with leading tech companies, research institutions, and universities to further his research and bring his inventions to life. His ability to work across disciplines and industries has led to the creation of cutting-edge technologies that have transformed the way we live and work.

Conclusion: Shivaji Sircar's passion for innovation and commitment to pushing the boundaries of what is possible have cemented his legacy as a pioneering inventor. His relentless pursuit of excellence continues to inspire the next generation of inventors to dream big and create a better future for all.