Inventor
HAYES JOHN A
US12 patents
⚠️ This page may combine multiple inventors who share the name “HAYES JOHN A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
LOADTEST INC
6 patentsUS7353714B2Apr 8, 2008
Method and apparatus for automatic load testing using bi-directional testing
LOADTEST INC21 citations89
US7832280B2Nov 16, 2010
Method and apparatus for testing load-bearing capacity utilizing a ring cell
LOADTEST INC6 citations72
US7495995B2Feb 24, 2009
Method and apparatus for investigating a borehole with a caliper
LOADTEST INC7 citations72
US9499956B2Nov 22, 2016
Method and apparatus for testing load-bearing capacity
LOADTEST INC3 citations68
US8789427B2Jul 29, 2014
Method and apparatus for testing load-bearing capacity
LOADTEST INC4 citations68
US9134190B2Sep 15, 2015
Method and apparatus for internally determining a load applied by a jack
LOADTEST INC2 citations61
HAYES JOHN A
5 patentsUS9217324B2Dec 22, 2015
Method and apparatus for investigating a borehole with a caliper
HAYES JOHN A5 citations71
US8307716B2Nov 13, 2012
Method and apparatus for testing load-bearing capacity utilizing a ring cell
HAYES JOHN A2 citations60
US8443677B2May 21, 2013
Method and apparatus for testing load-bearing capacity
HAYES JOHN A2 citations58
US8397583B2Mar 19, 2013
Method and apparatus for testing load-bearing capacity
HAYES JOHN A3 citations58
US8511176B2Aug 20, 2013
Method and apparatus for internally determining a load applied by a jack
HAYES JOHN A0 citations50