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: 368
Class Title: HOROLOGY: TIME MEASURING SYSTEMS OR DEVICES
Subclass Subclass
Number Title
1 CONTROLLED BY A DISPARATE DEVICE
2 .Speed checker
3 .Game
4 .Telephone
5 .Engine (e.g., internal combustion)
6 .Vehicle (e.g., aircraft, automobile) or vehicle part
7 ..Actuation of a parking meter
8 ..Actuation of a running-time meter
9 .Electrical device
10 COMBINED WITH DISPARATE DEVICE
11 .Ambient condition detector
12 .External alarm
13 .Telephone
14 .Navigational instrument
15 ASTRONOMICAL
16 .With sun, earth, and moon display
17 .With sun and earth display
18 .With moon and earth display
19 .With tide display
20 .With navigational display
21 PLURAL TIME ZONES
22 .With manually actuated display
23 .With a world globe
24 ..Including illumination means
25 .With movable belt display
26 .With movable drum display
27 .With movable disk display
28 WITH CALENDAR INDICATOR
29 .Electro-optical
30 ..Liquid crystal display (i.e., LCD)
31 .Winding and setting
32 ..Having clutch coupling
33 .Winding
34 .Setting or resetting
35 ..Movable ring or disk
36 ...With clutch
37 .Movable ring or disk
38 ..With jumper spring
39 .Movable drum
40 .Movable belt
41 WITH MEMORANDUM HOLDER OR ERASABLE WRITING SURFACE
42 .Motion controlled by timepiece
43 .Having alarm controlled by holder
44 .Having pointer controlled by timepiece
45 TOY
46 PLURAL TIMEPIECE SYSTEM OR SYSTEM DEVICE (E.G., PRIMARY OR
SECONDARY CLOCKS)
47 .With wireless synchronization
48 .With auxiliary power source
49 .With significant winding or setting means
50 ..For winding only
51 ..For setting onlyy
52 .Primary with direct synchronization or drive
53 ..By external condition responsive means
54 ..By fluidic actuation means
55 ..By communication means
56 ..By signal frequency change
57 ..By signal amplitude change
58 ..By signal polarity change
59 .Secondary
60 ..With mechanical or electromechanical resetting
61 ...Having mechanically actuated electrical switch
62 CHRONOLOGICAL
63 .Phonetic (e.g., talking clock)
64 .With supplemental power source
65 .With fluidic actuation means
66 .With power monitor
67 .With auxiliary illumination for display
68 .With intensity control of display
69 .With manually actuated display
70 ..Operated sequentially for distinct time data
71 .With simultaneous time indicating means
72 ..Alarm type
73 ...Actuated by electrical means
74 ...With significant winding or setting
75 ..Sequential hourly sounding means
76 .With mechanical or electromechanical driven display
77 ..Rotating disk
78 ..Drum
79 ..Optical
80 ..Hand and dial
81 ...Having motor located in hand
82 .With electro-optical display
83 ..Solid body light emitter (e.g., LED)
84 ..Liquid crystal display (i.e., LCD)
85 .With pulse transforming means
86 ..Including transistor
87 ...Integrated circuit
88 .With significant casing or mounting support structure
89 TIME INTERVAL
90 .Parking meter type
91 ..With gravity-actuated timer
92 ..With overtime indicator
93 .Gravity actuated type (e.g., hourglass)
94 ..With alarm means
95 ..With special support means
96 .With alternately operating indicators (e.g., chess clock)
97 .With predetermined mechanical timing means
98 ..Including alarm means
99 ...With combined alarm and time motor
100 ...With cam-controlled striker
101 .Mechanical stop time type
102 ..With plural second hands (e.g., split-seconds)
103 ..With pivoted coupler
104 ..With sliding coupler
105 ..With positive stop
106 ..With reset means
107 .Electrical or electromechanical
108 ..For predetermined interval
109 ...Including alarm meanss
110 ..Mechanically actuated stop time type
111 ...With electronic memory storage
112 ...With reset means
113 ..Stop time type
114 ...With physically changeable element
115 ...Including cathode-ray tube oscilloscope
116 ....With brightner means
117 ....With variable delay means
118 ...Including time base oscillator
119 ....Plural
120 ...Including delay means
121 ...Including time indicating means actuated by voltage or
electrical charge
122 ....With null indicator having variable circuit element
123 ....With vacuum-tube voltmeter
124 ESCAPEMENTS
125 .With oscillating or reciprocating means
126 ..Magnetic type
127 ..Balance wheel type
128 ...With motion conversion drive
129 ...Carrying impulse receiving means
130 ....On balance shaft
131 .....With pallet lock
132 ...With levers
133 ....In straight-line configuration
134 ..Pendulum type
135 ...With motion conversion drive
136 ...With gravity actuation
137 ...With beat adjuster
138 ....Having a verge
139 MECHANICAL TIME BASE
140 .Mainspring
141 ..With protection means
142 ..With mainwheel on barrel
143 ..With mainwheel on arbor
144 ..With attachment means for spring
145 ..With winding and setting
146 ...Stem
147 ..With winding
148 ...Self
149 ....Electric
150 .....Weight controlled
151 ....Spring
152 ...Gravity
153 ...Case controlled
154 ..With spring click
155 ELECTRICAL TIME BASE
156 .Solid state oscillating circuit type
157 ..For reciprocating or oscillating element
158 ...Balance wheel type
159 ...Crystal
160 .For reciprocating or oscillating element
161 ..Balance wheel type
162 ...With coil
163 ...With magnet
164 ...With opening and closing of contacts
165 ..Pendulum
166 ...With drive means controll
167 ..Tuning fork
168 OSCILLATING OR RECIPROCATING MEANS
169 .Balance wheel type
170 ..With regulation
171 ...By compensation
172 ...By rack and pinion
173 ...By screw
174 ....With spring bias
175 ...By hairspring
176 ....With curb pins
177 ....With collet
178 ....With stud
179 .Pendulum type
180 ..Torsion
181 ..With regulation
182 ...By thermal compensation
183 ..With lock
184 REGULATING MEANS
185 .For setting
186 ..With rate regulation
187 ..By electrical device actuation
188 ...With single actuation and plural pulses
189 ...With pulse blocking means
190 ..By winding means (e.g., stem)
191 ...Having a clutch
192 ....With lever engagement
193 .....Coupling
194 ......To notch in stem
195 .......With coupling spring biased
196 ...Having a movable plate
197 ....With double gear
198 .....Cam engagement
199 .....Lever engagement
200 .For adjusting the frequency or beat
201 ..Of frequency divider
202 .For compensation
203 POWER SUPPLY DETAILS
204 .Electrical
205 ..Solar cell
206 WINDING MEANS
207 .Self
208 ..Inertia
209 .With overwind prevention
210 .With condition indicator
211 ..Audio
212 ..Pointer and scale
213 .For cranked lever
214 .Key
215 .Rim
216 .Stem
217 PULSE TRANSFORMING MEANS
218 .With transistor
219 ..Field-effect transistor
220 DISPLAY TRAINS
221 .For rotatable disk dial type
222 .For drum or plate dial type
223 DISPLAYS OR DISPLAY DEVICE DETAILS
224 .With manual activationn
225 ..By motion or position
226 .With luminous material
227 .With auxiliary illumination for display
228 .Dial or hand
229 ..With animation (e.g., motion clock)
230 ..For tactile time perception (e.g., braille clock)
231 ..With time indicia shifting means
232 ..Including dial details only
233 ...Of rotatable disk type
234 ...Translucent
235 ...Of drum or plate type
236 ...Of dial fasteners
237 ....Screw
238 ..Including hand details only
239 .Optical
240 ..With circular pattern of light sources
241 ..With solid body light emitter (e.g., LED)
242 ..With liquid crystal display (i.e., LCD)
243 SIGNALLING MEANS
244 .Time condition responsive (i.e., alarm)
245 ..With variable loudness or tone
246 ..With same day plural time selection
247 ..For more than one day (e.g., eight-day clock)
248 ..With automatic repetition over short interval
249 ..With signal condition indicator
250 ..Electrical
251 ...With electronic memory storage
252 ...With contact on a circle
253 ...With contact on a hand
254 ...With cam control
255 ...With piezoelectric means
256 ...With optical signal
257 ...With mechanical let-off
258 ....Having alarm winding arbor
259 ...With combined alarm and time motor
260 ..With combined alarm and time motor
261 ..Plural
262 ..With shutoff
263 ...For short period
264 ...Having spring wind release
265 ..With let-off
266 ...Setting
267 .Repeat
268 ..Double snail
269 .Cam controlled
270 ..Snail
271 ..Pin
272 .Musical (e.g., "cuckoo-clock")
273 ..Chimes
274 .Recorded
275 .With deactivation during setting
276 CASES
277 .Adaptable
278 .Combined with disparate device
279 ..Ring
280 .Of particular material
281 .Wrist worn
282 ..With band or bracelet detailss
283 ..With a cover
284 .With tubular shape
285 .With ornamentation
286 .With protection means
287 ..Shock absorbing
288 ..For crown or stem
289 ...By waterproofing
290 ....Push-button stem type
291 ..Waterproofing
292 ...Noncircular-type case
293 ..Antimagnetic shielding
294 .With bezel or crystal details
295 ..Of bezel only
296 ..Of crystal only
297 .With details of center
298 ..Integral to front or back
299 .With movement ring details
300 .With movement securing means
301 .With pendant details
302 ..Bow
303 ...Fastener
304 ....Pin or screw
305 ....Sleeve
306 ..Crown or stem
307 ...Fastener
308 .With crown or stem details
309 .With front or back details
310 ..Of screw-threading to case center
311 ..Of opening spring
312 ...Cover connection
313 ..Of hinge connection
314 .With dial or sash securing means
315 .With alarm or striking attachment
316 .With support details
317 ..Base
318 PLATE DETAILS
319 CROWN OR STEM DETAILS
320 .Switch or detent
321 ..Electrical
322 ARBOR AND PINION DETAILS
323 CANNON PINION DETAILS
324 STAFF AND BEARING DETAILS
325 .Balance
326 ..For protection (e.g., shock absorbing)
327 MISCELLANEOUS