Regeneration or activation  (66)

Unknown  (6)

Biological material (e.g., microbe, enzyme, antigen, etc.) analyzed, tested, or included in apparatus  (84)

Subclass  (133)

Disposable apparatus or apparatus having removable section (e.g., removable cartridge, etc.)  (22)

Subclass  (41)

Plural measuring sections or zones  (6)

Subclass  (25)

Enzyme included in apparatus  (31)

Subclass  (38)

With semipermeable membrane  (11)

Subclass  (33)

With semipermeable membrane  (15)

Subclass  (134)

For blocking passage of macromolecules (molecular weight greater than or equal to 8,000)  (3)

Subclass  (10)

Lipid included in apparatus  (1)

Subclass  (42)

Enzyme included in apparatus  (4)

Subclass  (58)

Enzyme included in apparatus  (13)

Subclass  (188)

Glucose oxidase  (12)

Subclass  (222)

With diverse enzyme or catalyst (e.g., bienzyme or coenzyme system, glucose oxidase with pt catalyst, etc.)

Subclass  (46)

And microelectrode (i.e., at least one electrode dimension is less than 500 microns)

Subclass  (68)

Enzyme included in apparatus  (52)

Subclass  (208)

Electrode containing free carbon

Subclass  (77)

Corrosion  (108)

Titration  (15)

With significant electrical circuitry or nominal computer device  (270)

With significant display or analytical device  (40)

With means for temperature or pressure compensation  (119)

With means providing specified flow-condition or flow-path  (181)

Solid electrolyte means  (36)

Three or more electrodes  (61)

Three or more electrodes  (337)

Liquid electrodes, e.g., hg, na, etc.  (24)

Gel electrolyte  (56)

Selectively permeable membrane  (387)

Ion-sensitive electrode  (242)

Liquid ion-exchanger  (9)

Organic membrane  (217)

Inorganic membrane  (61)

Glass ion-selective membrane  (46)

Solid electrolyte  (110)