Harris
US05070451 12/03/1991 Forth specific language microprocessor
US05319757 06/07/1994 FORTH specific language microprocessor
Nanotronics
US05440749 08/08/1995 High performance, low cost microprocessor architecture
US05530890 06/25/1996 High performance, low cost
microprocessor
US05604915 02/18/1997 Data processing system having load dependent bus timing
Patriot Scientific
US05659703 08/19/1997 Microprocessor system with hierarchical stack and method of
operation
US05784584 07/21/1998 High
performance microprocessor using instructions that operate within instruction groups
US05809336 09/15/1998 High performance microprocessor having variable speed system clock