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For the Inventor, By the Inventor

Fullerton, CA, United States of America

Smithkline Diagnostics, Inc.

Calculating rank
USPTO Granted Patents = 23


Trademarks = 1

Forward Citations = 1,112

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28 inventors (with patents filed for the assignee):

goldMedal Howard Milne Chandler (6 out of 21 patents)

silverMedal Josefina T Baker (6 out of 13 patents)

bronzeMedal Paul K Hsei (5 out of 24 patents)

4.  Max D Liston (3 out of 20 patents)

5.  Ronald J Schoengold (2 out of 8 patents)

6.  Peter U Ly (2 out of 7 patents)

7.  David G Dickinson (2 out of 4 patents)

8.  James G Fetty (2 out of 2 patents)

9.  George M Daffern (2 out of 2 patents)

10.  Eli Z Olivet (2 out of 2 patents)

11.  Roger N Piasio (1 out of 12 patents)

12.  Richard Sergei Matusewicz (1 out of 7 patents)

13.  Christopher C Feistel (1 out of 14 patents)

14.  Paul J Lawrence (1 out of 32 patents)

15.  Ernest David Shields (1 out of 1 patent)


23 patents:

1. 6033627 - Bevel closure assay device housing (2000-03-07),
2. 5879951 - Opposable-element assay device employing unidirectional flow (1999-03-09),
3. 5877028 - Immunochromatographic assay device (1999-03-02),
4. 5869345 - Opposable-element assay device employing conductive barrier (1999-02-09),
5. 5846838 - Opposable-element assay device employing conductive barrier (1998-12-08),
6. 5747351 - Immunochemical-based test device with lift and twist specimen full tab (1998-05-05),
7. 5648274 - Competitive immunoassay device (1997-07-15),
8. 5607863 - Barrier-controlled assay device (1997-03-04),
9. 5468648 - Interrupted-flow assay device (1995-11-21),
10. 5391498 - Test for fecal occult blood (1995-02-21),
11. 5316732 - Extraction vial (1994-05-31),
12. 5310680 - Test for fecal occult blood (1994-05-10),
13. 5106582 - Specimen test slide and method of testing for fecal occult blood (1992-04-21),
14. 5013669 - Mass producible biologically active solid phase devices (1991-05-07),
15. 4946651 - Sample holder for a body fluid analyzer (1990-08-07),
Company Overview
Smithkline Diagnostics, Inc. is a prominent player in the field of medical diagnostics, specializing in the development and manufacturing of innovative diagnostic solutions. The company focuses on enhancing healthcare outcomes through advanced technologies that facilitate accurate disease detection and monitoring. Based in Fullerton, CA, Smithkline Diagnostics is committed to research and development in areas such as in vitro diagnostics and laboratory testing, aiming to improve patient care and streamline clinical workflows.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

23 Patents

#5 in Fullerton, CA

#3,424 in California

#14,450 in US

#27,736 in the World

Fullerton, CA (US)
Fullerton, CA, United States of America

Smithkline Diagnostics, Inc.

Forward Citations = 1,112

28 inventors:

goldMedal Howard Milne Chandler (6 out of 21 patents)

silverMedal Josefina T Baker (6 out of 13 patents)

bronzeMedal Paul K Hsei (5 out of 24 patents)

4.  Max D Liston (3 out of 20 patents)

5.  Ronald J Schoengold (2 out of 8 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Smithkline Diagnostics, Inc.. Retrieved from https://idiyas.com/company/smithkline-diagnostics

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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