Patents 225show all

  • 193
    E21B - Earth drilling, e.g. deep drilling
  • 36
    B66D - Capstans
  • 12
    B66C - Cranes
  • 10
    G01N - Investigating or analysing materials by determining their chemical or physical properties
  • 5
    B60T - Vehicle brake control systems or parts thereof
  • 5
    F16D - Couplings for transmitting rotation
  • 5
    G07C - Time or attendance registers
  • 4
    G01M - Testing static or dynamic balance of machines or structures
  • 3
    G06Q - Data processing systems or methods, specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes
  • 2
    B01D - Separation

SEC Filings show all


327
8-K

71
10-Q

21
10-K

1
D

Contact Information

Houston, TX
United States