About Us

Exality Corporation was formed by Gerrit Barrere, PE for the purpose of doing business as an engineering consultant.

Exality Corporation is a registered C corporation with the US government and the state of Washington.  Federal and state ID numbers available on request.


BSEE (Magna Cum Laude) 1979, University of Washington


2/92 to present: Consulting Engineer

6/84 to 1/92: Siemens Ultrasound Inc., Staff Design Engineer

2/82 to 6/84: Data I/O Corporation, Senior Design Engineer

1/80 to 2/82: Boeing Engineering and Construction, Design Engineer


Professional Engineer registered in Washington state, #0029830

Co-inventor, patent number 7,220,239: "Catheter With Multiple Ultrasound Radiating Members"

Co-inventor, patent number 5,477,858: "Ultrasound Blood Flow/Tissue Imaging System"

Co-inventor, patent number 5,715,518: "Adaptive Wave Form Matching For Use in Transmitter Identification"

Co-inventor, patent number 5,819,171: "Automatic Forced Call Disruption for Use With Wireless Telephone Systems"

Co-inventor, patent applied for: "System and Method for Locating Reference Waveforms for Use In Wireless Telephone Identification"

Member of IEEE, Tau Beta Pi, Phi Beta Kappa

Academic scholarship from Institute of All Electrical Engineers, 1977-78


"I started learning the joys and pitfalls of engineering at an early age, when I took my dad's HO gauge train engine apart and couldn't get it back together. It was clear as I grew up that math and electrical engineering were in my future. I've always had a wide curiosity for other things too, though, including the arts and humanities. I enjoy people and "play well with others". I like variety too, and consulting has been perfect for that. I love to come into a problem situation, define it, and fix it.  Engineers live from problem to problem, and I thrive on that."


Exality Corporation
1002 SW Normandy Terrace
Normandy Park, WA, USA

voice 206-241-7693
cell 206-276-3019
fax 815-550-8580