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Trademarks = 3

Forward Citations = 434

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7 inventors (with patents filed for the assignee):

Robert S Meijer (2 out of 14 patents)

Gene L Stewart (2 out of 4 patents)

Ralph E Nelson (2 out of 3 patents)

4. Wayne M Spani (1 out of 10 patents)

5. Thomas E Beling (1 out of 4 patents)

6. Tony M Quisenberry (1 out of 5 patents)

7. Fred E Wahlenmeier (1 out of 1 patent)

8 patents: Sort by Forward Citations

1. D330427 - Combined disposable bag and disinfectant container for sterilizing (1992-10-20),

2. 5089228 - Method for sterilizing and disposing of infectious waste (1992-02-18),

3. 5001425 - Ferromagnetic object detector with comparison of signal maximums from a (1991-03-19),

4. 4903832 - Method and apparatus for cleanly storing and disposing of discarded (1990-02-27),

5. 4874103 - Receptacle for receiving infectious waste material (1989-10-17),

6. 4637545 - Waste management system (1987-01-20),

7. 4593873 - Portable hamper with foot pedal operated cover (1986-06-10),

8. 4520926 - Container for sharps (1985-06-04),

Winfield Corporation is a leading provider of innovative solutions for the agriculture industry. With a focus on sustainable practices and cutting-edge technology, we offer a wide range of products and services to help farmers increase their crop yields and improve overall profitability. Our team of experts is dedicated to delivering superior customer service and support, ensuring that our clients have the resources they need to succeed in today's competitive market.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

8 Patents

#606 in San Diego, CA

#8,277 in California

#34,852 in US

San Diego, CA, United States of America

Winfield Corporation