1. CPC Sections
  2. CPC Section F
  3. CPC Class F41
  4. CPC Subclass F41G
Printable version [PDF]
Version: 2026.08
CPC
COOPERATIVE PATENT CLASSIFICATION
warning
F41G
WEAPON SIGHTS; AIMING (optical aspects thereof G02B) [2026-08]
WARNING

  • 1. In this subclass, non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme.
    2. The following IPC group is not in the CPC scheme. The subject matter for this IPC group is classified in the following CPC groups:
    F41G1/387 covered by F41G 11/001 - F41G 11/008
F41G 1/00
Sighting devices ({structurally associated with laser telemeters F41G 3/065;} for indirect laying of fire F41G 3/16; bombsights F41G 3/24) [2026-08]
F41G 1/01
.
characterised by the visual combination effect of the respective geometrical forms of fore and rear sight (F41G 1/42 takes precedence) [2013-01]
F41G 1/02
.
Foresights [2013-01]
F41G 1/027
. .
with lens [2013-01]
F41G 1/033
. .
adjustable [2013-01]
F41G 1/04
. .
Protection means therefor [2013-01]
F41G 1/06
.
Rearsights [2013-01]
F41G 1/065
. .
{Protection means therefor (F41G 1/04 takes precedence)} [2013-01]
F41G 1/08
. .
with aperture {; tubular or of ring form; Peep sights (F41G 1/42 takes precedence)} [2017-08]
F41G 1/10
. .
with notch [2013-01]
F41G 1/12
. .
with line or mark other than notch [2013-01]
F41G 1/14
. .
with lens [2013-01]
F41G 1/16
. .
Adjusting mechanisms therefor; Mountings therefor [2013-01]
F41G 1/17
. . .
Convertible sights, i.e. sets of two or more sights brought into the sight line optionally [2013-01]
F41G 1/18
. . .
Clicking-indicators with spring detents [2013-01]
F41G 1/20
. . .
coarse and fine [2013-01]
F41G 1/22
. . .
Friction clamps [2013-01]
F41G 1/24
. . .
rack-and-pinion; lever; linkwork [2013-01]
F41G 1/26
. . .
screw [2013-01]
F41G 1/28
. . .
wedge; cam; eccentric [2013-01]
F41G 1/30
.
Reflecting-sights specially adapted for smallarms or ordnance (reflecting-sights in general G02B) [2013-01]
F41G 1/32
.
Night sights, e.g. luminescent {(optical aspects of sighting devices G02B 23/00, G02B 27/00)} [2013-01]
F41G 1/34
. .
combined with light source, e.g. spot light [2019-01]
F41G 1/345
. . .
{for illuminating the sights} [2013-01]
F41G 1/35
. . .
for illuminating the target [2026-08]
F41G 1/36
. . .
with infrared light source [2023-08]
warning
F41G 1/38
.
Telescopic sights specially adapted for smallarms or ordnance (telescopic sights in general G02B); Supports or mountings therefor {(Means for mounting sighting or aiming devices on firearms F41G 11/001)} [2026-08]
WARNING

F41G 1/383
. .
{Protection means therefor} [2013-01]
warning
F41G 1/384
. .
{Adjustment turrets, i.e. mechanisms having a rotary knob for adjusting the direction of the optical axis} [2026-08]
WARNING

  • Groups F41G 1/384 - F41G 1/3853 are incomplete pending reclassification of documents from group F41G 1/38.
    All groups listed in this Warning should be considered in order to perform a complete search.
F41G 1/3841
. . .
{characterised by the provision for both coarse and fine adjustment} [2026-08]
F41G 1/3843
. . .
{characterised by the indication of the rotational position of the turret} [2026-08]
F41G 1/3845
. . .
{having means for allowing more than one revolution} [2026-08]
F41G 1/3846
. . . .
{with indicator for the current revolution} [2026-08]
F41G 1/3847
. . .
{characterised by locking means, i.e. for locking the turret in its rotational position} [2026-08]
F41G 1/3849
. . .
{characterised by means for selectively engaging or disengaging the rotary knob portion to or from the adjustment mechanism} [2026-08]
F41G 1/3851
. . .
{characterised by means for zeroing or sighting in} [2026-08]
F41G 1/3853
. . .
{characterised by electric or electronic elements, e.g. position sensors or motors for rotating the knob} [2026-08]
warning
F41G 1/386
. .
{Reticles, i.e. aiming references visible to the user such as crosshairs} [2026-08]
WARNING

  • Groups F41G 1/386 - F41G 1/3865 are incomplete pending reclassification of documents from group F41G 1/38.
    All groups listed in this Warning should be considered in order to perform a complete search.
F41G 1/3861
. . .
{physical reticles, e.g. a set of wires or transparent elements provided with markings} [2026-08]
F41G 1/3863
. . . .
{characterised by their mounting, e.g. adjustable in position} [2026-08]
F41G 1/3864
. . . .
{characterised by the illumination of the reticle} [2026-08]
F41G 1/3865
. . .
{projected or displayed reticles (projected reticles in reflecting sights F41G 1/30)} [2026-08]
warning
F41G 1/387
(Frozen)
. .
Mounting telescopic sights on smallarms [2026-08]
WARNING

F41G 1/393
. .
Mounting telescopic sights on ordnance; Transmission of sight movements to the associated gun [2013-01]
F41G 1/3935
. . .
{Transmission of sight movements to the associated gun} [2015-10]
F41G 1/40
.
Periscopic sights specially adapted for smallarms or ordnance (periscopic sights in general G02B); Supports or mountings therefor [2013-01]
F41G 1/41
. .
Mounting periscopic sights on smallarms [2013-01]
F41G 1/42
.
Tube sights; Bar sights {; Combinations of tubular fore and rearsights} [2017-08]
F41G 1/425
. .
{Bar sights} [2013-01]
F41G 1/44
.
Spirit-level adjusting means, e.g. for correcting tilt; {Means for indicating or correcting tilt or cant} [2013-01]
F41G 1/46
.
for particular applications [2013-01]
F41G 1/467
. .
for bows [2013-01]
F41G 1/473
. .
for lead-indicating or range-finding, e.g. for use with rifles or shotguns [2013-01]
F41G 1/48
. .
for firing grenades from rifles [2013-01]
F41G 1/50
. .
for trench mortars {or for other mortars} [2013-01]
F41G 1/52
. .
for rifles or shotguns having two or more barrels, or adapted to fire different kinds of ammunition, e.g. ball or shot [2013-01]
F41G 1/54
.
Devices for testing or checking {; Tools for adjustment of sights} [2017-08]
F41G 1/545
. .
{Tools for adjustment of sights} [2013-01]
F41G 3/00
Aiming or laying means (sighting devices F41G 1/00; determining direction, distance or velocity by use of radio or other waves G01S; computers G06; antennas H01Q) [2018-01]
F41G 3/005
.
{with means for correcting the parallax between the sighting means and the muzzle axis} [2013-01]
F41G 3/02
.
using an independent line of sight [2013-01]
F41G 3/04
.
for dispersing fire from a battery {; for controlling spread of shots; for coordinating fire from spaced weapons} [2017-08]
F41G 3/06
.
with rangefinder (rangefinders per se G01C) [2013-01]
F41G 3/065
. .
{Structural association of sighting devices with laser telemeters} [2026-08]
F41G 3/08
.
with means for compensating for speed, direction, temperature, pressure, or humidity of the atmosphere (measuring G01) [2013-01]
F41G 3/10
.
with means for compensating for canting of the trunnions [2013-01]
F41G 3/12
.
with means for compensating for muzzle velocity or powder temperature {with means for compensating for gun vibrations} [2013-01]
F41G 3/14
.
Indirect aiming means [2013-01]
F41G 3/142
. .
{based on observation of a first shoot; using a simulated shoot (training F41G 3/26)} [2013-01]
F41G 3/145
. .
{using a target illuminator} [2013-01]
F41G 3/147
. .
{based on detection of a firing weapon} [2013-01]
F41G 3/16
. .
Sighting devices adapted for indirect laying of fire [2013-01]
F41G 3/165
. . .
{using a TV-monitor} [2013-01]
F41G 3/18
. .
Auxiliary target devices adapted for indirect laying of fire [2013-01]
F41G 3/20
. .
specially adapted for mountain artillery [2013-01]
F41G 3/22
.
for vehicle-borne armament, e.g. on aircraft [2013-01]
F41G 3/225
. .
{Helmet sighting systems} [2013-01]
F41G 3/24
. .
Bombsights [2013-01]
F41G 3/26
.
Teaching or practice apparatus for gun-aiming or gun-laying {(shooting games A63F 9/02; light- or radiation-emitting guns F41A 33/02; targets therefor F41J; responders, transponders for radar, sonar, lidar G01S 13/767, G01S 15/74, G01S 17/74)} [2013-01]
F41G 3/2605
. .
{using a view recording device cosighted with the gun (F41G 3/2616 takes precedence)} [2013-01]
F41G 3/2611
. . .
{coacting with a TV-monitor} [2013-01]
F41G 3/2616
. .
{using a light emitting device} [2013-01]
F41G 3/2622
. . .
{for simulating the firing of a gun or the trajectory of a projectile} [2013-01]
F41G 3/2627
. . . .
{Cooperating with a motion picture projector} [2013-01]
F41G 3/2633
. . . . .
{using a TV type screen, e.g. a CRT, displaying a simulated target} [2013-01]
F41G 3/2638
. . . . . .
{giving hit coordinates by means of raster control signals, e.g. standard light pen} [2013-01]
F41G 3/2644
. . . .
{Displaying the trajectory or the impact point of a simulated projectile in the gunner's sight} [2013-01]
F41G 3/265
. . . .
{with means for selecting or varying the shape or the direction of the emitted beam} [2013-01]
F41G 3/2655
. . . .
{in which the light beam is sent from the weapon to the target} [2013-01]
F41G 3/2661
. . . .
{in which the light beam is sent from the target to the weapon (F41G 3/2638 takes precedence)} [2013-01]
F41G 3/2666
. . . .
{with means for selecting or varying PRF or time coding of the emitted beam} [2013-01]
F41G 3/2672
. . . . .
{using PRF adapted receiver} [2013-01]
F41G 3/2677
. . . . . .
{with PRF determination} [2013-01]
F41G 3/2683
. . . .
{with reflection of the beam on the target back to the weapon} [2013-01]
F41G 3/2688
. . . . .
{using target range measurement, e.g. with a laser rangefinder} [2013-01]
F41G 3/2694
. . .
{for simulating a target (F41G 3/2627 takes precedence; moving targets per se F41J 9/00)} [2013-01]
F41G 3/28
. .
Small-scale apparatus (relief models or maps G09B) [2013-01]
F41G 3/30
. .
Gun-laying apparatus [2013-01]
F41G 3/32
.
Devices for testing or checking [2013-01]
F41G 3/323
. .
{for checking the angle between the muzzle axis of the gun and a reference axis, e.g. the axis of the associated sighting device (testing alignment of axes in general G01B 11/27)} [2013-01]
F41G 3/326
. .
{for checking the angle between the axis of the gun sighting device and an auxiliary measuring device (F41G 3/323 takes precedence)} [2013-01]
F41G 5/00
Elevating or traversing control systems for guns ({means for inhibiting firing in a specified direction F41A 17/08}; gun mountings permitting traversing or elevating movement, e.g. gun carriages, F41A 27/00; computers G06) [2013-01]
F41G 5/02
.
using only mechanical means for remote control [2013-01]
F41G 5/04
.
using hydraulic means for remote control [2013-01]
F41G 5/06
.
using electric means for remote control [2013-01]
F41G 5/08
.
Ground-based tracking-systems for aerial targets [2013-01]
F41G 5/12
.
acoustically influenced [2013-01]
F41G 5/14
.
for vehicle-borne guns [2013-01]
F41G 5/16
. .
gyroscopically influenced [2013-01]
F41G 5/18
. .
Tracking systems for guns on aircraft [2013-01]
F41G 5/20
. .
for guns on ships [2013-01]
F41G 5/22
. . .
to compensate for rolling or pitching [2013-01]
F41G 5/24
. .
for guns on tanks [2013-01]
F41G 5/26
.
Apparatus for testing or checking [2013-01]
F41G 7/00
Direction control systems for self-propelled missiles (flight control B64C, G05D 1/00 {; counter-measures against guided missiles F41H 11/02; spin-stabilised missiles F42B 10/26}; self-propelled or guided missiles having direction control systems only installed aboard F42B 15/01; rocket torpedoes F42B 17/00; marine torpedoes or sea-mines having self-propulsion means F42B 19/00; locating by use of radio or other waves G01S; computing aspects G06) [2017-08]
F41G 7/001
.
{Devices or systems for testing or checking} [2013-01]
F41G 7/002
. .
{target simulators} [2013-01]
F41G 7/003
. . .
{for seekers using radio waves} [2013-01]
F41G 7/004
. . .
{for infrared seekers} [2023-08]
F41G 7/005
. .
{for testing benches or sets} [2013-01]
F41G 7/006
.
{Guided missiles training or simulation devices} [2013-01]
F41G 7/007
.
{Preparatory measures taken before the launching of the guided missiles} [2013-01]
F41G 7/008
.
{Combinations of different guidance systems} [2013-01]
F41G 7/20
.
based on continuous observation of target position [2013-01]
F41G 7/22
. .
Homing guidance systems [2013-01]
F41G 7/2206
. . .
{using a remote control station} [2013-01]
F41G 7/2213
. . .
{maintaining the axis of an orientable seeking head pointed at the target, e.g. target seeking gyro} [2013-01]
F41G 7/222
. . .
{for spin-stabilized missiles} [2013-01]
F41G 7/2226
. . .
{comparing the observed data with stored target data, e.g. target configuration data} [2013-01]
F41G 7/2233
. . .
{Multimissile systems} [2013-01]
F41G 7/224
. . .
{Deceiving or protecting means (jamming or anti-jamming of radio-wave systems in general G01S 7/36, G01S 7/38; defense installations in general F41H 11/02; chaff dispensers F42B 12/70)} [2013-01]
F41G 7/2246
. . .
{Active homing systems, i.e. comprising both a transmitter and a receiver} [2013-01]
F41G 7/2253
. . .
{Passive homing systems, i.e. comprising a receiver and do not requiring an active illumination of the target} [2013-01]
F41G 7/226
. . .
{Semi-active homing systems, i.e. comprising a receiver and involving auxiliary illuminating means, e.g. using auxiliary guiding missiles} [2013-01]
F41G 7/2266
. . . .
{Systems comparing signals received from a base station and reflected from the target} [2013-01]
F41G 7/2273
. . .
{characterised by the type of waves} [2013-01]
F41G 7/228
. . . .
{using acoustic waves, e.g. for torpedoes} [2013-01]
F41G 7/2286
. . . .
{using radio waves} [2013-01]
F41G 7/2293
. . . .
{using electromagnetic waves other than radio waves} [2013-01]
F41G 7/24
. .
Beam riding guidance systems (conical-scan beam beacons therefor G01S 1/42) [2013-01]
F41G 7/26
. . .
Optical guidance systems [2013-01]
F41G 7/263
. . . .
{Means for producing guidance beams} [2013-01]
F41G 7/266
. . . .
{for spin-stabilized missiles} [2013-01]
F41G 7/28
. . .
Radio guidance systems [2013-01]
F41G 7/30
. .
Command link guidance systems {(homing F41G 7/2206)} [2013-01]
F41G 7/301
. . .
{Details} [2013-01]
F41G 7/303
. . . .
{Sighting or tracking devices especially provided for simultaneous observation of the target and of the missile} [2013-01]
F41G 7/305
. . . .
{for spin-stabilized missiles} [2013-01]
F41G 7/306
. . . .
{for transmitting guidance signals (F41G 7/308 takes precedence)} [2026-08]
F41G 7/308
. . . .
{for guiding a plurality of missiles} [2013-01]
F41G 7/32
. . .
for wire-guided missiles [2020-08]
F41G 7/34
.
based on predetermined target position data [2013-01]
F41G 7/343
. .
{comparing observed and stored data of target position or of distinctive marks along the path towards the target} [2013-01]
F41G 7/346
. .
{using global navigation satellite systems, e.g. GPS, GALILEO, GLONASS} [2013-01]
F41G 7/36
. .
using inertial references [2013-01]
F41G 9/00
Systems for controlling missiles or projectiles, not provided for elsewhere [2013-01]
F41G 9/002
.
{for guiding a craft to a correct firing position (for bombing control F41G 9/02)} [2013-01]
F41G 9/004
. .
{Training or teaching apparatus therefor} [2013-01]
F41G 9/006
. .
{for torpedo launchers (torpedo launching-apparatus F41F 3/08)} [2013-01]
F41G 9/008
.
{Means for controlling firing of torpedoes; Torpedo directors (acoustic homing F41G 7/228)} [2013-01]
F41G 9/02
.
for bombing control (bombsights F41G 3/24) [2013-01]
F41G 9/025
. .
{Training or teaching apparatus therefor} [2013-01]
F41G 11/00
Details of sighting or aiming apparatus; Accessories {(tools for adjustment of sights F41G 1/545)} [2017-08]
warning
F41G 11/001
.
{Means for mounting sighting or aiming devices on firearms} [2026-08]
WARNING

F41G 11/002
. .
{Mountings with recoil absorbing means} [2013-01]
warning
F41G 11/003
. .
{Mountings with a dove tail element, e.g. "Picatinny rail systems"} [2026-08]
WARNING

warning
F41G 11/0032
. . .
{characterised by the mounting rail} [2026-08]
WARNING

F41G 11/00321
. . . .
{Geometry thereof} [2026-08]
F41G 11/00323
. . . .
{provided with additional functional elements (with recoil absorbing means F41G 11/002; power or data transfer F41G 11/0038)} [2026-08]
F41G 11/00324
. . . . .
{Flip-up sights} [2026-08]
F41G 11/00325
. . . .
{Adjustable, e.g. with respect to the firearm barrel axis} [2026-08]
F41G 11/00327
. . . .
{Arrangements for securing the rail to the firearm} [2026-08]
warning
F41G 11/0034
. . .
{characterised by the rail-engaging mounting member} [2026-08]
WARNING

F41G 11/00341
. . . .
{Clamping arrangements} [2026-08]
F41G 11/003412
. . . . .
{with the clamping provided by a threaded element} [2026-08]
F41G 11/003414
. . . . .
{with the clamping provided by an eccentric element} [2026-08]
F41G 11/003416
. . . . .
{with the clamping provided by an elastic element} [2026-08]
F41G 11/00343
. . . .
{with a movement of the left or right rail-engaging components relative to each other during engaging or disengaging} [2026-08]
F41G 11/003431
. . . . .
{Translational movements} [2026-08]
F41G 11/003433
. . . . .
{Rotational movements} [2026-08]
F41G 11/003437
. . . . .
{Flexing movements} [2026-08]
F41G 11/00345
. . . .
{characterised by the locking means in the longitudinal direction} [2026-08]
F41G 11/00347
. . . .
{being integral with the mounted device} [2026-08]
F41G 11/00349
. . . .
{adapters therefor, i.e. elements for coupling further rails to the mounting rail} [2026-08]
warning
F41G 11/0038
. . .
{characterised by the data or power transfer between the rail and the rail-engaging mounting member} [2026-08]
WARNING

F41G 11/00381
. . . .
{by optical means} [2026-08]
F41G 11/00384
. . . .
{by electrical means} [2026-08]
F41G 11/00387
. . . . .
{by induction means} [2026-08]
F41G 11/004
. .
{Mountings with clamping means on the device embracing at least a part of the firearm, e.g. the receiver or a dustcover (F41G 11/003 takes precedence)} [2015-09]
F41G 11/005
. .
{Mountings using a pivot point and an anchoring point} [2013-01]
F41G 11/006
. . .
{the device being rotated in a horizontal plane} [2013-01]
F41G 11/007
. . .
{the device being tilted in a vertical plane} [2013-01]
F41G 11/008
. . .
{the device being pivotable about an axis coaxial with the axis of the barrel, e.g. for loading} [2013-01]