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Forward Citations = 158

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6 inventors (with patents filed for the assignee):

Claude D Zehrung, Jr (5 out of 5 patents)

William H Oliver (3 out of 4 patents)

Edward T Biegel (1 out of 6 patents)

4. Richard Tadashi Moran (1 out of 1 patent)

5. Joseph C Martinez (1 out of 1 patent)

6. Clarence L Urie (1 out of 1 patent)

7 patents: Sort by Forward Citations

1. 6347593 - Modular dethatcher and seeder (2002-02-19),

2. 5690178 - Sod cutter (1997-11-25),

3. 5680903 - Lawn aerator having tine assemblies spaced along a shaft (1997-10-28),

4. 5119880 - Aerating apparatus (1992-06-09),

5. 4168079 - Movable carrier for storing and transporting normally elongated parts (1979-09-18),

6. 4068455 - Bag for a lawn comber (1978-01-17),

7. 4028868 - Towable lawn comber (1977-06-14),

Bluebird International, Inc. is a leading global provider of innovative solutions for the aerospace, defense, and security industries. With a proven track record of delivering cutting-edge technology and exceptional customer service, Bluebird International is dedicated to helping clients achieve their missions and objectives. Our team of experts specializes in developing customized solutions that meet the unique needs of each customer, ensuring the highest level of performance and reliability. Contact us today to learn more about how Bluebird International can help you succeed.

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Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

7 Patents

#134 in Denver, CO

#835 in Colorado

#38,860 in US

Denver, CO, United States of America

Bluebird International, Inc.