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Fort Washington, PA, United States of America

William H. Rorer, Inc.

Calculating rank

USPTO Granted Patents = 146

Forward Citations = 1,159

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41 inventors (with patents filed for the assignee):

George H Douglas (64 out of 66 patents)

Julius Diamond (56 out of 76 patents)

William L Studt (44 out of 80 patents)

4. Henry F Campbell (31 out of 89 patents)

5. Stuart A Dodson (19 out of 25 patents)

6. Donald E Kuhla (18 out of 59 patents)

7. Norman J Santora (16 out of 16 patents)

8. John Yelnosky (14 out of 17 patents)

9. Jerome J Zalipsky (13 out of 13 patents)

10. Chong M Won (11 out of 11 patents)

11. Robert W Klein (8 out of 16 patents)

12. George W Nuss, Jr (8 out of 9 patents)

13. Richard L Riley (7 out of 8 patents)

14. Ghulam N Mir (6 out of 11 patents)

15. Harry K Zimmerman (5 out of 7 patents)

Core Competencies:

Cardiotonic

Amidinoureas

Heterocyclic

Gastrointestinal

Bicyclic

Pharmaceutical

Erythromycin

Anti-Acne

Acyl Guanidines

Triazinones

Ethynylbenzene

Hypertension

146 patents: Sort by Forward Citations

1. 4725686 - Benzodiazinone-pyridazinone and hydroxy-pyrazolyl compounds, cardiotonic (1988-02-16),

2. 4692329 - Erythromycin/benzoyl peroxide antiacne compositions (1987-09-08),

3. 4689335 - Heterocyclic guanidines for treating gastrointestinal motility (1987-08-25),

4. 4668673 - Bicycle benzo-oxy heterocyclic ethers and thioethers, pharmaceutical (1987-05-26),

5. 4666913 - Hydroxy and aminothiazolyl-benzodiazinone compounds, cardiotonic (1987-05-19),

6. 4647559 - Bicyclic benzenoid aminoalkylene ethers and thioethers, pharmaceutical (1987-03-03),

7. 4639442 - Benzocyclobutene aminoalkylene ethers and thioethers, pharmaceutical (1987-01-27),

8. 4638001 - Bicyclic benzenoid aminoalkylene ethers and thioethers, pharmaceutical (1987-01-20),

9. 4637528 - Articulated joint in aerosol medicament dispenser (1987-01-20),

10. 4632927 - Bicyclic nitrogen heterocyclic ethers and thioethers, and their (1986-12-30),

11. 4612309 - Antisecretory bicyclic benzo-oxy heterocyclic ethers and thioethers (1986-09-16),

12. 4611011 - Amidinoureas for treating irritable bowel syndrome (1986-09-09),

13. 4605551 - Dry oil coated antacid process (1986-08-12),

14. 4595683 - 3- and 5-[bicyclic ether or bicyclic alkylene thioether]alkylene amino (1986-06-17),

15. 4593028 - 5-hetero aryl-substituted-2-pyridones useful as cardiotonic agents for (1986-06-03),

Company Overview

William H. Rorer, Inc., based in Fort Washington, PA, specializes in the development and manufacturing of cardiotonic compounds and related pharmaceutical products. The company focuses on innovative technologies in areas such as amidinoureas, heterocyclic compounds, and gastrointestinal treatments. With expertise in erythromycin and anti-acne formulations, Rorer is dedicated to advancing therapeutic solutions that address various health conditions, contributing to the pharmaceutical landscape with a commitment to quality and efficacy.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

146 Patents

#2 in Fort Washington, PA

#111 in Pennsylvania

#2,685 in US

#5,594 in the World

Fort Washington, PA, United States of America

William H. Rorer, Inc.

Forward Citations = 1,159

41 inventors:

George H Douglas (64 out of 66 patents)

Julius Diamond (56 out of 76 patents)

William L Studt (44 out of 80 patents)

4. Henry F Campbell (31 out of 89 patents)

5. Stuart A Dodson (19 out of 25 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: William H. Rorer, Inc.. Retrieved from https://idiyas.com/company/william-h-rorer

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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