4,738,324 Self-adjusting weighing system
	4,828,057 Leaf spring
	4,862,978 Combination dust cover and air screen
	4,862,979 Combination dust cover and air screen
	4,869,331 Leaf Spring
	4,874,051 Leaf spring
	5,150,759 Capacitor-sensor
	5,167,290 Springs for use in a compact self-adjusting weighing system
	5,183,124 Compact self-adjusting weighing system having stable measurement resolution

European Patents

EP555,404 (also filed as 5,150,759 -  WO9208110 - AU9030991 ) Improved Capacitor Sensor in Belgium in Germany in Switzerland

US Trademarks

	1,699,984 Gemscale 50
	1,669,277 Dendritics