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Forward Citations = 258

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7 inventors (with patents filed for the assignee):

Lewis W Schmidt (6 out of 6 patents)

Darryl G Bettencourt (6 out of 8 patents)

James E Seiferling (3 out of 4 patents)

4. Thomas S Bettencourt (2 out of 8 patents)

5. Charles F Dietz (2 out of 4 patents)

6. George E Marshall, Jr (1 out of 2 patents)

7. Akos I Szoboszlay (1 out of 1 patent)

14 patents: Sort by Forward Citations

1. 4584826 - Tomato harvester (1986-04-29),

2. 4573124 - Height control for agricultural machine (1986-02-25),

3. 4570426 - Tomato harvester with improved separation of tomatoes from other picked (1986-02-18),

4. 4569037 - Apparatus for determining the distance from a predetermined point to a (1986-02-04),

5. 4567766 - Piezoelectric ultrasonic apparatus and method for determining the (1986-02-04),

6. 4414792 - Height control for agricultural machine (1983-11-15),

7. D263174 - Front dump refuse compactor (1982-02-23),

8. 4290352 - Refuse bin lid unit (1981-09-22),

9. 4271756 - Load retraction preventing finger array (1981-06-09),

10. D258737 - Rear dump refuse compactor (1981-03-31),

11. D258442 - Front dump refuse compactor (1981-03-03),

12. 4165897 - Refuse compactor with a counterbalanced rear door (1979-08-28),

13. 4152979 - Lid unit for a refuse compactor (1979-05-08),

14. 3961573 - Refuse bin with power-actuated compactor blade (1976-06-08),

Blackwelders is a leading manufacturer of high-quality welding products and supplies. With a strong commitment to innovation, quality, and customer satisfaction, Blackwelders has been serving the welding industry for over 20 years. Our extensive product line includes welding machines, electrodes, safety equipment, and accessories. We strive to provide our customers with the best solutions for their welding needs, backed by outstanding service and support.

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USPTO Data Jan 1 1976 - Dec 16 2025

14 Patents

#2 in Rio Vista, CA

#5,148 in California

#21,607 in US

#40,905 in the World

Rio Vista, CA, United States of America

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