Donald R. May

Follow

Person

Independence, MO, US

People

Patents Grantslast 30 patents

Information Patent Grant
Apparatus for lifting structures
- Patent number 4,854,782
- Issue date Aug 8, 1989
- Sandra L. May
- Donald R. May
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Method and apparatus for lifting and supporting slabs
- Patent number 4,800,700
- Issue date Jan 31, 1989
- Atlas System, Inc.
- Donald R. May
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Method and apparatus for lifting and supporting structures
- Patent number 4,634,319
- Issue date Jan 6, 1987
- May; Donald R.
- Donald R. May
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING