Apparatus and methods for counterbalancing a pumping unit

Assignee

• Weatherford Technology Holdings

Inventors

• Clark E. Robison (65 patents)
• Jeffrey J. Lembcke (55 patents)
• Ross E. MOFFETT (5 patents)
• Bryan A. Paulet (16 patents)
• Phillip Andrew Briggs (1 patents)
• Brent W. Pickens (2 patents)
• Benson Thomas (17 patents)
• Robert G. McDonald (22 patents)

View full patent text on Google Patents →