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Forward Citations = 96

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8 inventors (with patents filed for the assignee):

Leonard E Kronfeld (5 out of 5 patents)

Mervin B Kronfeld (3 out of 3 patents)

Thomas J Winkler (2 out of 13 patents)

4. Ricky J Madsen (2 out of 3 patents)

5. John Eric Heinz (1 out of 5 patents)

6. Mario F Fernandez (1 out of 4 patents)

7. M Grant Albrecht (1 out of 1 patent)

8. Bruce J Rubin (1 out of 4 patents)

10 patents: Sort by Forward Citations

1. 4537509 - Optical inspection and alignment verification system (1985-08-27),

2. 4357640 - Thin film magnetic transducer (1982-11-02),

3. 4343025 - Transducer arm assembly for floppy disk (1982-08-03),

4. 4315293 - Transducer protection guide for diskette insertion and removal (1982-02-09),

5. 4315292 - Beveled magnetic heads for floppy disk (1982-02-09),

6. 4309732 - Transducer supporting assembly for double sided floppy disk (1982-01-05),

7. D261888 - Cassette tape eraser (1981-11-17),

8. 4152742 - Back bar retainer for magnetic head (1979-05-01),

9. 4113141 - Dispenser package for magnetic tape splicing tabs (1978-09-12),

10. D245167 - Splicer for magnetic tape (1977-07-26),

Nortronics Company, Inc. is a leading provider of innovative technology solutions in the field of electronics and communications. With over 20 years of experience, we specialize in designing and manufacturing high-quality electronic components for a wide range of industries. Our products are known for their reliability, performance, and durability, making us a trusted partner for businesses around the world.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

10 Patents

#162 in Minneapolis, MN

#850 in Minnesota

#29,828 in US

#55,954 in the World

Minneapolis, MN, United States of America

Nortronics Company, Inc.