Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Adjustable step ladder










Image Number 2 for United States Patent #6698550.

An adjustable back leg assembly provides a step ladder of simple construction for convenient use on stairs and other sloping surfaces.








 
 
  Recently Added Patents
System for determining potential lot consolidation during manufacturing
System and method for operating an electric power converter
Data-conditioned encryption method
Method and system for fail-safe call survival
Verification of a portable consumer device in an offline environment
Controller
Apparatus and method for storing event information for an HVAC system
  Randomly Featured Patents
Compositions with hematopoietic and immune activity
Crossflow fan
Process for the production of citric acid
System and method for detecting a rapid leak from a tire
Method for determining fluid type in reservoir
Augmented classical least squares multivariate spectral analysis
Golf game
Magnetic random access memory
Thermochemical penetrator for ice and frozen soils
Image decoding apparatus, image decoding method and computer program