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Ann Arbor, MI, United States of America

Gelman Sciences, Inc.

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USPTO Granted Patents = 48

Trademarks = 10

Forward Citations = 1,655

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49 inventors (with patents filed for the assignee):

Inessa Katsnelson (7 out of 7 patents)

Mark D Heisler (7 out of 7 patents)

Menahem A Kraus (7 out of 23 patents)

4. Eric Sklar (4 out of 6 patents)

5. William C Steere (4 out of 5 patents)

6. Hopin Hu (4 out of 4 patents)

7. Jeffrey Ambler (4 out of 4 patents)

8. Monty E Vincent (3 out of 8 patents)

9. Menaham Kraus (3 out of 3 patents)

10. Diosie Velazques (3 out of 3 patents)

11. Kariyawasam P Pemawansa (3 out of 3 patents)

12. Gerald B Tanny (3 out of 9 patents)

13. Attila Vadnay (3 out of 6 patents)

14. Ehud Shchori (2 out of 9 patents)

15. Chung-Jen Hou (2 out of 14 patents)

Core Competencies:

Microporous Membrane

Filtration Device

Water Purifier

Gas Separating Filter

Medical Filter Housing

Electrophoresis Method

Polymeric Film Filter

Cation Exchange

Hydrophilic Membrane

Disposable Filter

Blotting Method

Chromogen Enzyme Targeting

48 patents: Sort by Forward Citations

1. 5749726 - Disposable point of use filtration element for purifying air and water (1998-05-12),

2. 5601711 - Selective separation filter device (1997-02-11),

3. 5554025 - Disposable point of use air and water filter for dental syringes (1996-09-10),

4. 5531893 - Inter-penetrating network charge modified microporous membrane (1996-07-02),

5. 5510243 - Multiple chromogen enzyme targeting (MCET) for use in bacterial (1996-04-23),

6. 5472606 - Self-supporting, pleated, spirally wound filter (1995-12-05),

7. D360464 - Gas separating filter (1995-07-18),

8. 5403482 - Self-supporting, pleated, spirally wound filter and the corresponding (1995-04-04),

9. 5308483 - Microporous filtration funnel assembly (1994-05-03),

10. 5278296 - Production of hydroxysteryl glycoside compounds (1994-01-11),

11. 5277812 - Inter-penetrating network charge modified microporous membrane (1994-01-11),

12. 5269931 - Cationic charge modified microporous membranes (1993-12-14),

13. 5209849 - Hydrophilic microporous polyolefin membrane (1993-05-11),

14. 5200073 - Polymeric film filter assembly (1993-04-06),

15. 5178765 - Hydrophilic membranes prepared from (1993-01-12),

Company Overview

Gelman Sciences, Inc., based in Ann Arbor, MI, specializes in the development and manufacturing of advanced filtration solutions. The company focuses on a range of technologies including microporous membranes, disposable filters, and hydrophilic membranes, catering to diverse applications in life sciences and industrial processes. Gelman is recognized for its expertise in electrophoresis methods and gas separating filters, providing innovative polymeric film filters and cationic charge modified membranes that enhance performance and reliability in critical filtration tasks.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

48 Patents

#15 in Ann Arbor, MI

#288 in Michigan

#7,297 in US

#14,575 in the World

Ann Arbor, MI, United States of America

Gelman Sciences, Inc.

Forward Citations = 1,655

49 inventors:

Inessa Katsnelson (7 out of 7 patents)

Mark D Heisler (7 out of 7 patents)

Menahem A Kraus (7 out of 23 patents)

4. Eric Sklar (4 out of 6 patents)

5. William C Steere (4 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Gelman Sciences, Inc.. Retrieved from https://idiyas.com/company/gelman-sciences

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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