For the Inventor, By the Inventor

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Walpole, MA, United States of America

Bird-Johnson Company

USPTO Granted Patents = 15

Trademarks = 1

Forward Citations = 238

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17 inventors (with patents filed for the assignee):

Francesco Lanni (4 out of 6 patents)

Gregory P Platzer (3 out of 3 patents)

William F Esthimer (3 out of 3 patents)

4. Stephen C Olson (2 out of 3 patents)

5. Joseph L Cavallaro (2 out of 2 patents)

6. Neal A Brown (1 out of 7 patents)

7. Arthur J Richards, Jr (1 out of 1 patent)

8. Charles A Busche (1 out of 1 patent)

9. Ole H Midttun (1 out of 2 patents)

10. Seabury B Waring (1 out of 1 patent)

11. Mark S Dumais (1 out of 1 patent)

12. Peter J MacMurray (1 out of 1 patent)

13. John A Norton (1 out of 3 patents)

14. Richard E Trudell (1 out of 1 patent)

15. Edward H Morin (1 out of 1 patent)

15 patents: Sort by Forward Citations

1. 6238257 - Surface vessel with a waterjet propulsion system (2001-05-29),

2. 6152792 - Steering and reversing apparatus for waterjet propulsion systems (2000-11-28),

3. 6135831 - Impeller for marine waterjet propulsion apparatus (2000-10-24),

4. 6071156 - Surface vessel with a fully submerged waterjet propulsion system (2000-06-06),

5. 5304038 - Built-up marine propeller blade balancing (1994-04-19),

6. 5213472 - Inboard servo for marine controllable pitch propellers (1993-05-25),

7. 5145318 - Flange-mounted controllable pitch marine propeller (1992-09-08),

8. 4982066 - Method of rehabilitating propeller hub bodies (1991-01-01),

9. 4907992 - Oil distribution box for a marine controllable pitch propeller (1990-03-13),

10. 4906213 - Apparatus for detecting the pitch of a marine controllable pitch (1990-03-06),

11. 4872811 - Inboard servo for marine controllable pitch propellers (1989-10-10),

12. 4810166 - Controllable pitch marine propeller (1989-03-07),

13. 4801243 - Adjustable diameter screw propeller (1989-01-31),

14. 4289222 - Engine-clutch control interlock system (1981-09-15),

15. 4277945 - Control system for equalizing the torques of multiple engines driving a (1981-07-14),

Bird-Johnson Company is a leading manufacturer of marine propulsion systems, specializing in controllable pitch propellers and thrusters for the maritime industry. With a history dating back to 1924, Bird-Johnson continues to provide innovative solutions to improve vessel performance and efficiency. Visit our website for more information.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

15 Patents

#2 in Walpole, MA

#1,231 in Massachusetts

#20,435 in US

#38,719 in the World

Walpole, MA, United States of America

Bird-Johnson Company

Forward Citations = 238

17 inventors:

Francesco Lanni (4 out of 6 patents)

Gregory P Platzer (3 out of 3 patents)

William F Esthimer (3 out of 3 patents)

4. Stephen C Olson (2 out of 3 patents)

5. Joseph L Cavallaro (2 out of 2 patents)

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