Inventor
BIRKEN RALF
US6 patents
⚠️ This page may combine multiple inventors who share the name “BIRKEN RALF”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WITTEN TECHNOLOGIES INC
3 patentsUS6766253B2Jul 20, 2004
Method for merging position information with measurements and filtering to obtain high-quality images that are positioned accurately with respect to global coordinates
WITTEN TECHNOLOGIES INC57 citations92
US6735888B2May 18, 2004
Virtual camera on the bucket of an excavator displaying 3D images of buried pipes
WITTEN TECHNOLOGIES INC48 citations89
US6525539B2Feb 25, 2003
Apparatus and method for locating subsurface objects in conductive soils by measurements of magnetic fields by induced currents with an array of multiple receivers
WITTEN TECHNOLOGIES INC6 citations61