Inventor
CALDWELL DAVID
US12 patents
⚠️ This page may combine multiple inventors who share the name “CALDWELL DAVID”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TEXAS INSTRUMENTS INC
5 patentsUS4511987AApr 16, 1985
Method of entering and performing operations on complex numbers on calculators
TEXAS INSTRUMENTS INC7 citations69
US4521868AJun 4, 1985
Electronic data processing apparatus with equation operating system having improved exponentiation operators
TEXAS INSTRUMENTS INC2 citations60
US4519045AMay 21, 1985
Electronic data processing apparatus with equation operating system having improved unary operation implementation
TEXAS INSTRUMENTS INC5 citations60
US4495592AJan 22, 1985
Electronic data processing apparatus with equation operating system having implied multiplication of two hierarchical ranks
TEXAS INSTRUMENTS INC2 citations60
US4473886ASep 25, 1984
Data processing apparatus with algebraic memory operation and entry sequence
TEXAS INSTRUMENTS INC4 citations57