Resources Contact Us Home
Browse by Category: Main > Engineering
Class Information
Number: 405/138.2
Name: Hydraulic and earth engineering >

Sub-classes under this class:

Class Number Class Name Patents
405/1 Marine vessel portage, launching, or removing 78
405/11 Means to expose a normally wetted surface,e.g., cofferdam, etc. 17
405/128.1 Soil remediation 66
405/129.1 Subterranean waste disposal, containment, or treatment 66
405/130 Temperature modification or control of earthen formation 93
405/132 Underground passageway, e.g., tunnel 124
405/15 Bank, shore, or bed protection 260
405/154.1 Subterranean or submarine pipe or cable laying, retrieving, manipulating, or treating 271
405/185 Diving 117
405/195.1 Marine structure or fabrication thereof 755
405/229 Foundation 265
405/258.1 Earth treatment or control 120
405/303 Miscellaneous 372
405/36 Drainage or irrigation 626
405/52 Fluid control, treatment, or containment 553
405/8 Pressurized caisson 19

Patents under this class:

Patent Number Title Of Patent Date Issued

  Recently Added Patents
Method and apparatus for producing homogeneous magnetic fields
Process for producing polyphenylene ether composition
Solution based precursors
Storage apparatus and storage apparatus management method performing data I/O processing using a plurality of microprocessors
Method and system for evaluating/analyzing patent portfolio using patent priority approach
Measuring apparatus for measuring a physical property of a sample
System for thermally controlling displays
  Randomly Featured Patents
Tip sealing tilt valve structure for viscous flow liquids
Apparatus and methods for positioning optical fibers and other resilient members
Amphibious vehicle with improved cleat design
Methods for forming transition metal oxide clusters and smoking articles comprising transition metal oxide clusters
Well flow control system
Method of producing elongated large-size forged article
Flame retardant low Tg polyestercarbonate
Sizing agent composition for printing paper
Surgical stapler with improved safety mechanism
Liquid storage system