| Class Number |
Class Name |
No. of Patents |
| 351/200 |
Eye examining or testing instrument |
180 |
| 351/203 |
Eye exercising or training type |
119 |
| 351/201 |
For fusion and space perception testing (e.g., stereoscopic vision) |
45 |
| 351/202 |
Of abnormal muscular functioning |
15 |
| 351/204 |
For interpupillary distance measuring or lens positioning |
110 |
| 351/246 |
Methods of use |
445 |
| 351/247 |
For contact lens fitting |
103 |
| 351/205 |
Objective type |
642 |
| 351/214 |
Including diaphram or slit |
210 |
| 351/209 |
Including eye movement detection |
191 |
| 351/210 |
Using photodetector |
231 |
| 351/206 |
Including eye photography |
563 |
| 351/208 |
Having means to detect proper distance or alignment (i.e., eye to instrument) |
227 |
| 351/207 |
Having spurious reflection blocking |
36 |
| 351/221 |
Including illuminator |
708 |
| 351/216 |
Including lens selectively insertable in optical path |
82 |
| 351/217 |
On rotary disc |
17 |
| 351/218 |
Hand held type |
45 |
| 351/213 |
Including light filter or absorber |
69 |
| 351/215 |
Including light polarizing means |
40 |
| 351/211 |
Including projected target image |
449 |
| 351/212 |
For cornea curvature measurement |
357 |
| 351/220 |
Including reflectors with off-set surfaces |
15 |
| 351/219 |
With contact lens |
129 |
| 351/222 |
Subjective type |
111 |
| 351/237 |
Including target image projection |
130 |
| 351/238 |
Tachistoscope type |
6 |
| 351/239 |
Including test chart or target |
152 |
| 351/241 |
Astigmatism type |
10 |
| 351/242 |
Chromaticity type |
38 |
| 351/244 |
Having support or cabinet |
29 |
| 351/243 |
Illuminated |
206 |
| 351/240 |
Stereoscopic type |
33 |
| 351/227 |
Including trial frame |
25 |
| 351/231 |
Removably attachable to eye glass frame |
8 |
| 351/230 |
With individual lens holder |
8 |
| 351/228 |
With multifocal lens |
8 |
| 351/229 |
With plural lens carrier |
7 |
| 351/233 |
Lens or filter selectively insertable in optical path |
38 |
| 351/234 |
Mounted on rotatable disc |
30 |
| 351/235 |
Having plural disc carrier |
30 |
| 351/236 |
Movable along optical axis |
6 |
| 351/224 |
Perimeter type |
107 |
| 351/226 |
With bowl type screen |
49 |
| 351/225 |
With rotatable arm |
9 |
| 351/223 |
Self examining type |
50 |
| 351/232 |
With light polarzing lens |
21 |
| 351/245 |
Support |
88 |
| 351/41 |
Spectacles and eyeglasses |
531 |
| 351/103 |
Brace arm or semi-rimless mounting |
78 |
| 351/104 |
Arm or rim of plastic or of different material (e.g., metal and plastic) |
2 |
| 351/109 |
Brace arm extends along edge of lens |
11 |
| 351/108 |
Brace arm supports lens at two spaced points or constitutes a partial rim |
16 |
| 351/105 |
Detachable brace arm |
19 |
| 351/106 |
Screwless lens mounting |
129 |
| 351/107 |
With adjustable lens or frame part |
12 |
| 351/124 |
Bridges |
104 |
| 351/128 |
Adjustable |
68 |
| 351/125 |
Crossbar type |
5 |
| 351/126 |
Flexible |
31 |
| 351/127 |
Ball or chain type |
0 |
| 351/129 |
Reinforced |
10 |
| 351/130 |
With auxiliary support |
20 |
| 351/133 |
With connectors or straps |
18 |
| 351/134 |
Unitary bridge and straps |
1 |
| 351/135 |
With lens clamping straps |
4 |
| 351/131 |
With nose grip or guard integral with bridge |
15 |
| 351/132 |
With nose grip, nose guard, pad, or cushion |
36 |
| 351/158 |
Combined |
624 |
| 351/140 |
Connectors |
75 |
| 351/142 |
Strap type |
2 |
| 351/148 |
Adjusting |
5 |
| 351/144 |
With cementing or fusing |
6 |
| 351/152 |
With clamping arms |
6 |
| 351/145 |
With cushion around lens screw or bolt |
4 |
| 351/146 |
Sleeve or bushing |
17 |
| 351/149 |
With interengaging projection and recess |
28 |
| 351/143 |
With particular bracing bar or stud |
2 |
| 351/150 |
With resilient parts (e.g., resilient strap arms) |
1 |
| 351/151 |
Spring between lens and strap |
0 |
| 351/147 |
With serrated interengaging parts |
3 |
| 351/153 |
With particular hinge |
280 |
| 351/141 |
With screw locking means |
27 |
| 351/83 |
Continuous rim mounting |
68 |
| 351/87 |
Nose guards or pads integral with frame |
10 |
| 351/88 |
Nose guards or pads removable or adjustable |
37 |
| 351/85 |
Upper rim portion slotted |
14 |
| 351/89 |
With brace arm temple support |
2 |
| 351/86 |
With lens retaining or locking means |
121 |
| 351/84 |
With rotating means for multifocal lenses |
7 |
| 351/43 |
Floating or underwater type |
109 |
| 351/63 |
Folding |
72 |
| 351/64 |
Pince-nez type |
0 |
| 351/54 |
Invertible or reversible multifocal type |
12 |
| 351/154 |
Lens linings or rims |
83 |
| 351/59 |
Lens pivots in and out of optical path |
50 |
| 351/42 |
Lens repair devices |
11 |
| 351/56 |
Lorgnette type |
7 |
| 351/178 |
Methods (e.g., securing lenses in mountings) |
84 |
| 351/136 |
Nose pads or cushions |
90 |
| 351/137 |
Adjustable, rockable, or pivotable |
77 |
| 351/138 |
Detachable |
87 |
| 351/139 |
With cover or coating |
36 |
| 351/159 |
Ophthalmic lenses or blanks |
492 |
| 351/167 |
Cataract correction type |
28 |
| 351/160R |
Eye contact type |
670 |
| 351/162 |
Colored |
223 |
| 351/160H |
Hydrophilic |
556 |
| 351/161 |
Multifocal |
381 |
| 351/176 |
Focus and/or astigmatism correction |
83 |
| 351/173 |
Image size (aniseikonia) correction |
4 |
| 351/177 |
Methods |
757 |
| 351/168 |
Multifocal |
175 |
| 351/169 |
Gradually varying focal power |
253 |
| 351/172 |
Multiple elements |
67 |
| 351/171 |
Three or more foci |
23 |
| 351/170 |
With prismatic segment |
18 |
| 351/175 |
Prismatic type |
37 |
| 351/174 |
With beveled, polished or reinforced edges |
18 |
| 351/166 |
With lens protective layers |
173 |
| 351/163 |
With light filtering means |
314 |
| 351/164 |
Multifocal |
41 |
| 351/165 |
With sections of different light absorption |
81 |
| 351/65 |
Pince-nez type (including pince-nez bridges, nose grips and nose pads therefor) |
6 |
| 351/69 |
Lens and nose grip movable on flexible bridge |
1 |
| 351/78 |
Nose pads or cushions |
18 |
| 351/80 |
Detachable |
20 |
| 351/82 |
Fluid-filled or suction type |
3 |
| 351/81 |
Perforated or serrated |
2 |
| 351/79 |
Plural pad parts engage the nose |
2 |
| 351/67 |
Plural bridges |
2 |
| 351/70 |
Posts or studs connecting bridge and nose grip |
0 |
| 351/76 |
With adjustable or rockable nose grips or pads |
8 |
| 351/77 |
With ball joints |
2 |
| 351/66 |
With ear chain or temple |
1 |
| 351/68 |
With resilient extensible bridge |
1 |
| 351/71 |
With spring biased nose grips |
2 |
| 351/72 |
With pivoting levers |
0 |
| 351/73 |
With flat spiral springs |
0 |
| 351/74 |
With springs below bridge |
2 |
| 351/75 |
With springs encased |
0 |
| 351/110 |
Rimless mounting |
128 |
| 351/53 |
Shooting type |
15 |
| 351/90 |
Split rim mounting |
64 |
| 351/100 |
Clamp and temple pivot screw coincident on rim clamping arm |
2 |
| 351/99 |
Clamp and temple pivot screw spaced along rim clamping arm |
8 |
| 351/102 |
Combined metal and plastic rims |
0 |
| 351/95 |
Expansible and contractible lens rim |
33 |
| 351/96 |
Locking member secures lens against rotation |
8 |
| 351/101 |
Metal clamps embrace the rims and connect to bridge and/or temples |
3 |
| 351/97 |
Split connected by u-clamps or pivot links |
12 |
| 351/98 |
Split on nasal side of rim (i.e., at bridge) |
8 |
| 351/94 |
With auxiliary bridge |
3 |
| 351/93 |
With brace arm supports for temple or lens |
0 |
| 351/91 |
With brow pieces or top arms |
6 |
| 351/92 |
Screwless lens mounting |
45 |
| 351/111 |
Temples |
176 |
| 351/116 |
Detachable |
59 |
| 351/118 |
Extensible (e.g., with adjustable sleeve member |
86 |
| 351/120 |
Inclined to lens plane |
72 |
| 351/114 |
Resilient or flexible |
51 |
| 351/115 |
Reversible or axially rotatable |
26 |
| 351/113 |
Spring biased |
121 |
| 351/119 |
Two-part type (e.g., jointed) |
96 |
| 351/121 |
With connector |
172 |
| 351/117 |
With covered core or rod (e.g., reinforced) |
21 |
| 351/123 |
With head or ear engaging attachments |
153 |
| 351/112 |
With pocket clip or clasp |
31 |
| 351/122 |
With skin protecting earpiece covering |
43 |
| 351/61 |
U-shape or half-moon lens below eye level |
14 |
| 351/44 |
With antiglare or shading |
326 |
| 351/45 |
Partially occluding the light-path area |
111 |
| 351/46 |
Perforated opaque plates or shields |
65 |
| 351/49 |
Polarizing |
121 |
| 351/47 |
Removable and/or adjustable filters or screens (e.g., clip-on type) |
418 |
| 351/48 |
Spring biased |
34 |
| 351/57 |
With auxiliary lenses movable in and out of the optical path (e.g., clip-on type attachments) |
385 |
| 351/58 |
Spring biased or secured by friction members |
45 |
| 351/51 |
With decoration or ornamentation |
91 |
| 351/52 |
Detachably secured |
78 |
| 351/60 |
With lens suspension bar (e.g., torsion bar) |
5 |
| 351/62 |
With moisture prevention or absorption |
96 |
| 351/50 |
With rear-view reflectors |
49 |
| 351/155 |
With support or holder (e.g., on hat or cap) |
132 |
| 351/157 |
Neck retainers |
108 |
| 351/156 |
With head embracing bow or chain |
158 |
| 351/55 |
With vertical adjustment of multifocal lenses |
17 |
