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Minneapolis, MN, United States of America

Medi-Ject Corporation

USPTO Granted Patents = 14

Forward Citations = 1,517

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15 inventors (with patents filed for the assignee):

David R Schiff (8 out of 29 patents)

Paul Mulhauser (7 out of 57 patents)

Peter L Sadowski (4 out of 50 patents)

4. Thomas R Johnson (4 out of 18 patents)

5. David I Rosen (4 out of 8 patents)

6. Craig J Carlson (4 out of 4 patents)

7. David Reginald Theobald (4 out of 4 patents)

8. Hugh Francis Taylor (4 out of 10 patents)

9. Stephen John Lilley (4 out of 5 patents)

10. Sheldon J Nelson (3 out of 11 patents)

11. Walter Stoeckmann (3 out of 6 patents)

12. David M Deboer (1 out of 6 patents)

13. Matthew Marzynski (1 out of 1 patent)

14. Dave Schiff (1 out of 1 patent)

15. Paul R Lesch, Jr (1 out of 38 patents)

14 patents: Sort by Forward Citations

1. 6123684 - Loading mechanism for medical injector assembly (2000-09-26),

2. 5921967 - Plunger for nozzle assembly (1999-07-13),

3. 5919159 - Medical injection system and method, gas spring thereof and launching (1999-07-06),

4. 5891085 - Nozzle assembly with lost motion connection for medical injector assembly (1999-04-06),

5. 5875976 - Locking mechanism for nozzle assembly (1999-03-02),

6. 5865795 - Safety mechanism for injection devices (1999-02-02),

7. 5846233 - Coupling device for medical injection system (1998-12-08),

8. 5836911 - Injection device having positioning means (1998-11-17),

9. 5800388 - Plunger/ram assembly adapted for a fluid injector (1998-09-01),

10. 5769138 - Nozzle and adapter for loading medicament into an injector (1998-06-23),

11. 5722953 - Nozzle assembly for injection device (1998-03-03),

12. 5697917 - Nozzle assembly with adjustable plunger travel gap (1997-12-16),

13. 5643211 - Nozzle assembly having a frangible plunger (1997-07-01),

14. 5599302 - Medical injection system and method, gas spring thereof and launching (1997-02-04),

Company Overview

Medi-Ject Corporation, based in Minneapolis, MN, specializes in the development and manufacturing of innovative medical devices aimed at enhancing drug delivery systems. The company focuses on creating solutions that improve patient outcomes through advanced technology in injection systems. With a commitment to research and development, Medi-Ject is dedicated to addressing the evolving needs of healthcare providers and patients, ensuring safe and effective administration of medications across various therapeutic areas.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

14 Patents

#121 in Minneapolis, MN

#647 in Minnesota

#22,333 in US

#42,290 in the World

Minneapolis, MN, United States of America

Medi-Ject Corporation

Forward Citations = 1,517

15 inventors:

David R Schiff (8 out of 29 patents)

Paul Mulhauser (7 out of 57 patents)

Peter L Sadowski (4 out of 50 patents)

4. Thomas R Johnson (4 out of 18 patents)

5. David I Rosen (4 out of 8 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Medi-Ject Corporation. Retrieved from https://idiyas.com/company/medi-ject

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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