What follows are the subclasses from one class of the Manual of Classification for US patents. As you scroll through the list and encounter a class/subclass of interest, you can jump back to the top and retrieve patent titles by entering the class/subclass in the box below.
Enter a class/subclass code here to get a list of patent titles. Use
any of the following forms:
363-131 121-55A 14-.5
that is, no embedded spaces, class and subclass seperated by a dash, and any
subclass letters capitalized. Currently Design Patent titles (those in the
classes of the form Dxx.yy) are not retreivable.
Class Number: 136
Class Title: BATTERIES: THERMOELECTRIC AND PHOTOELECTRIC
Subclass Subclass
Number Title
200 THERMOELECTRIC
201 .Processes
202 .Nuclear energy type
203 .Peltier effect device
204 ..Including additional heat exchange means
205 .Electric power generator
206 ..Solar energy type
207 ..Including an electric heater
208 ..Plural junction concentrically or annularly arranged around
source of temperature differential
209 ...Plural concentrically arranged fluid source conduits
210 ....At least one conduit for liquid coolant
211 ..Plural hot or cold junction arranged in a single line
212 ..Plural hot or cold junctions arranged in a single plane
213 .Radiation pyrometer
214 ..Including a ray concentrator (e.g., lens, mirror, etc.)
215 ...Lens type
216 ..Evacuated
217 .Including a pilot burner
218 ..Having moving fluid (e.g., air, fuel, liquid, etc.) cooling
means for cold junction
219 ..Thermocouple extends through fuel supply conduit
220 ..Thermopile-containing
221 .Including means to resiliently press junction element against
sensed surface
222 .Including means to standardize nonsensing junction by heating
or cooling
223 .Having an evacuated space
224 .Thermopile
225 ..Having strip, film or plate-type thermocouples
226 ..Having wound wire-type thermocouples
227 ..Two or more couples of dissimilar composition
228 .One junction element surrounded by another junction element
229 .Having additional contact means for sensing solid work
230 .Having housing, mounting or support
231 ..Including sample port for sensed material
232 ..Covered and sealed sensor junction
233 ...Contacting covering over junction (e.g., embedded, coated,
etc.)
234 ...Molten metal immersion type
235 ..Thermocouple leads having disengageable pressure-type
electrical connectors
236.1 .Having particular thermoelectric composition
237 ..Having particular bonding material for junction
238 ..Chalcogenide containing (S, O, Te, Se)
239 ..Group IV element containing (C, Si, Ti, Ge, Zr, Sn, Hf, Pb)
240 ..Group V metal containing (V, As, Nb, Sb, Ta, Bi)
241 ..Group IB metal containing (Cu, Ag, Au)
242 .Adjuncts
243 PHOTOELECTRIC
244 .Panel or array
245 ..Lightweight and collapsible or foldablee
246 ..With concentrator, orientator, reflector, or cooling means
247 ...Fluorescent concentrator
248 ...Hybrid conversion system
249 ..Monolithic semiconductor
250 ..Particulate or spherical semiconductor
251 ..Encapsulated or with housing
252 .Cells
253 ..Radioactive, ionic, or thermo photo
254 ..Photoemissive, capacitive, magnetic, or ferroelectric
255 ..Schottky, graded doping, plural junction or special junction
geometry
256 ..Contact, coating, or surface geometry
257 ...Luminescent layer or optical filter
258 ..Polycrystalline or amorphous semiconductor
259 ..With concentrator, housing, cooling means, or encapsulated
260 ..Cadmium containing
261 ..Silicon or germanium containing
262 ..Gallium containing
263 ..Organic active material containing
264 ..Selenium or tellurium containing
265 ..Copper, lead, or zinc containing
* ******************************
* CROSS-REFERENCE ART COLLECTIONS
* ******************************
290 TESTING, CALIBRATING, TREATING (E.G., AGING, ETC.)
291 APPLICATIONS
292 .Space - satellite
293 .Circuits