Walter P Cullen

This inventor holds 60 USPTO granted patents, primarily in Polycyclic Ether Antibiotics (CPC class 4241). Top assignee: Pfizer Corporation. Active years: 1976-1999.

USPTO Granted Patents = 60

% Patents Active = 100.0

Average Co-Inventor Count = 4.7

ph-index = 7

Forward Citations = 211(Granted Patents)

Forward Citations (Not Self Cited) = 163(Dec 10, 2025)

Inventors with similar research interests:

Location History:

New York, NY (US) (1990)
Groton, CT (US) (1991)
East Lyme, CT (US) (1976 - 1999)

Company Filing History:

60 out of 4,486

Pfizer Corporation

patents

Years Active: 1976-1999

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Areas of Expertise:

Polycyclic Ether

Antibiotics

Streptomyces

Anticoccidial

Macrolide

Nocardia

Growth Enhancement

Anthelmintic

Ionophore

Fermentation

Catenuloplanes

Ansamycin

60 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5965445 - Polycyclic ether antibiotic having anthelmintic, anticoccidial and (1999-10-12),

2. 5891727 - Acidic polycyclic ether useful as an anticoccidial agent and as a growth (1999-04-06),

3. 5494931 - Acidic polycyclic ether antibiotic (1996-02-27),

4. 5494820 - Streptomyces braegensis strain and its cultivation in a process for (1996-02-27),

5. 5478735 - Process for producing acidic polycyclic ether antibiotic having (1995-12-26),

6. 5418152 - Acidic polycyclic ether antibiotic (1995-05-23),

7. 5403738 - Microorganism for producing polycyclic ether antibiotics (1995-04-04),

8. 5298524 - Acidic polycyclic ether antibiotic having an anticoccidial and growth (1994-03-29),

9. 5206263 - Acidic polycyclic ether useful as an anticoccidial agent and as a growth (1993-04-27),

10. 5158937 - Acidic polycyclic ether antibiotic having anticoccidial and growth (1992-10-27),

11. 5155097 - Polycyclic ether antibiotic having anthelmintic, anticoccidial and (1992-10-13),

12. 5147858 - Acidic polycyclic ether useful as an anticoccidial agent and as a growth (1992-09-15),

13. 5100785 - Polycyclic ether antibiotic (1992-03-31),

14. 5064855 - Acid polycyclic ether antibiotic (1991-11-12),

15. 4992423 - Polycyclic ether antibiotics (1991-02-12),

Title: The Innovative Journey of Walter P. Cullen

Introduction: Walter P. Cullen, a distinguished inventor hailing from East Lyme, CT (US), has made significant contributions to the field of innovations with his groundbreaking ideas and inventions.

Latest Patents: Walter P. Cullen holds several patents in various technological domains, showcasing his versatility and creativity in inventing new solutions to complex problems.

Career Highlights: Throughout his illustrious career, Walter P. Cullen has been at the forefront of innovation, consistently pushing the boundaries of what is possible. His dedication to creating novel inventions has earned him recognition as a pioneer in his field.

Collaborations: Walter P. Cullen has collaborated with leading research institutions, universities, and companies to bring his inventions to life. His ability to work effectively in multidisciplinary teams has led to the successful development of cutting-edge technologies.

Conclusion: In conclusion, Walter P. Cullen's passion for innovation and his relentless pursuit of excellence have established him as a prominent figure in the world of inventions. His remarkable contributions continue to inspire future generations of inventors to think outside the box and create solutions that shape the world we live in.