Goldbeter and Koshland expanded it in a 1983 paper to account for ultrasensitivity brought on by covalent modification, and the pigment depletion formula is one modification of it.  Savageau considered dimensionally restricted conditions, and a key step in its derivation was due to Briggs and Haldane.  An Eadie-Hofstee diagram uses it, though it is more famously the basis 
Goldbeter and Koshland expanded it in a 1983 paper to account for ultrasensitivity brought on by covalent modification, and the pigment depletion formula is one modification of it.  Savageau considered dimensionally restricted conditions, and a key step in its derivation was due to Briggs and Haldane.  An Eadie-Hofstee diagram uses it, though it is more famously the basis of the double reciprocal Lineweaver-Burke plot.  One of its namesake's eponymous constant used in it can be defined as the substrate concentration at which the reaction occurs at half of its maximum speed.  For 10 points, name this doubly eponymous equation that describes enzyme kinetics.
Goldbeter and Koshland expanded it in a 1983 paper to account for ultrasensitivity brought on by covalent modification, and the pigment depletion formula is one modification of it.  
Michaelis-Menten equation