| Class Number |
Class Name |
No. of Patents |
| 383/210 |
Bag closure secured by a releasable or frangible bond (e.g., peel seal) |
218 |
| 383/211 |
Adhesive bond |
183 |
| 383/210.1 |
Having another independent closure for same access opening |
86 |
| 383/200 |
Bag having means to facilitate opening it by severing bag material or bag part (e.g., tearing, cutting, piercing, etc.) |
146 |
| 383/202 |
Combined with, or modified for opening by, a sharp-edged cutting implement or a piercing implement |
81 |
| 383/205 |
Including a separate tearing element which is gripped and pulled to open the bag |
101 |
| 383/206 |
Cord, string, wire, or thread |
43 |
| 383/203 |
Including means for reclosing the bag |
136 |
| 383/204 |
Including a bag portion which is completely separated from the bag during tearing (e.g., tear strip) |
127 |
| 383/207 |
Line of weakness delineates substantially the entire tearing path |
134 |
| 383/209 |
Bag portion completely separated from the bag during tearing |
153 |
| 383/208 |
Line of perforations having means for preventing leakage before opening |
38 |
| 383/201 |
Tearing facilitated by specified fiber or molecular orientation |
30 |
| 383/1 |
Biodegradable feature |
54 |
| 383/38 |
Compartmented |
347 |
| 383/39 |
Compartment-forming member secured to backing |
121 |
| 383/40 |
Including auxiliary compartment |
181 |
| 383/4 |
Convertible |
342 |
| 383/905 |
Dead fold (ductile) closure element |
33 |
| 383/906 |
Dispensing feature |
231 |
| 383/121 |
End structure (e.g. bottom) |
124 |
| 383/123 |
Formed by folding bag walls on common fold line and joining together |
18 |
| 383/124 |
Foldable to form distinct end wall |
16 |
| 383/125 |
Overlapping extensions of opposed walls |
23 |
| 383/126 |
Extension formed by cuts in bag wall |
20 |
| 383/121.1 |
Rigid bottom |
53 |
| 383/122 |
Seamless |
69 |
| 383/904 |
Filling tube |
73 |
| 383/104 |
Free-standing |
254 |
| 383/902 |
Having nonbag use |
18 |
| 383/901 |
Hot water or ice bag |
42 |
| 383/3 |
Inflatable |
215 |
| 383/6 |
Lifting or suspending element (e.g., handle) |
136 |
| 383/12 |
Attached to bag frame |
38 |
| 383/21 |
Attached to distinct end wall |
40 |
| 383/13 |
Detachable |
97 |
| 383/22 |
Hanging element |
126 |
| 383/24 |
Closed loop |
161 |
| 383/23 |
Hook-type |
72 |
| 383/17 |
Including reinforcement or stress distribution means attached to or adjacent element |
89 |
| 383/20 |
Additional layer of material at element attachment location |
46 |
| 383/18 |
Extending across bag bottom |
51 |
| 383/19 |
Extending axially through bag interior to bag bottom |
11 |
| 383/11 |
Magnetic or adhesive-type element (includes hook and loop type fastener) |
61 |
| 383/16 |
Plural elements located at diverse bag regions (i.e., bag bottom, bag middle, and/or bag top) |
105 |
| 383/15 |
Plural interengaging elements |
57 |
| 383/25 |
Single element |
69 |
| 383/26 |
Bag includes opening through bag material to receive element |
24 |
| 383/27 |
Opening extending through fold or folded bag portion |
19 |
| 383/28 |
Secured to bag interior |
18 |
| 383/30 |
Secured to folded bag closure |
13 |
| 383/31 |
Closure flap |
11 |
| 383/29 |
Straddles bag mouth |
37 |
| 383/7 |
Unitary with bag (e.g., element formed by hand hole) |
125 |
| 383/9 |
Bag material includes aperture for rodlike support |
215 |
| 383/10 |
Bag material includes hand-receiving aperture |
156 |
| 383/8 |
Loop extending between opposite walls |
149 |
| 383/14 |
With provision for positioning element in nonuse location |
54 |
| 383/908 |
Material having specified grain direction or molecular orientation |
55 |
| 383/127 |
Miscellaneous |
134 |
| 383/907 |
Peculiar, particular shape |
129 |
| 383/37 |
Plural |
323 |
| 383/2 |
Selectively adjustable volume |
124 |
| 383/903 |
Stress relief |
79 |
| 383/5 |
Tamper indicating |
267 |
| 383/105 |
Wall details |
83 |
| 383/109 |
Multi-layer or ply |
263 |
| 383/113 |
Barrier layer or ply (e.g., waterproof) |
268 |
| 383/116 |
Coating or lamination |
156 |
| 383/114 |
Including specified end structure |
35 |
| 383/115 |
Overlapping extension formed by cuts in bag wall |
5 |
| 383/110 |
Insulated |
126 |
| 383/111 |
Removable ply |
141 |
| 383/112 |
Stretchable layer or ply |
15 |
| 383/120 |
Pleated or gusseted |
343 |
| 383/119 |
Reinforced |
351 |
| 383/107 |
Specified seam structure |
210 |
| 383/108 |
Waterproof |
33 |
| 383/118 |
Stretchable |
32 |
| 383/106 |
Transparent portion or window |
131 |
| 383/117 |
Woven or mesh-type material |
248 |
| 383/42 |
With closure |
49 |
| | With closure | |
| 383/88 |
Bag walls designed to be rolled together or folded on common fold line |
49 |
| 383/89 |
With separate securing element for roll or fold |
93 |
| 383/90 |
Element extends substantially 180 degrees or more around roll or fold |
29 |
| 383/91 |
Element extends around side edge |
26 |
| 383/93 |
Closure within bag |
75 |
| 383/94 |
Heat seal |
80 |
| 383/95 |
Reusable |
93 |
| 383/96 |
Stopper or plug |
40 |
| 383/97 |
Zipper |
145 |
| 383/68 |
Elongated clamping elements |
49 |
| 383/69 |
Sliding |
24 |
| 383/67 |
For access opening in bag bottom |
182 |
| 383/66 |
For access opening in sidewall |
340 |
| 383/71 |
Gathered bag mouth |
131 |
| 383/72 |
Including drawstring-type securing element |
63 |
| 383/75 |
In bag hem |
139 |
| 383/76 |
Through bag openings |
57 |
| 383/74 |
With means to maintain the securing element in closed configuration |
34 |
| 383/73 |
With mouth opening aid |
5 |
| 383/77 |
Securing element consisting of unitary bag portion |
48 |
| 383/59 |
Including auxiliary means for forming leakproof closure seal |
36 |
| 383/60 |
Annular gasket |
8 |
| 383/84 |
Including closure flap which overlaps sidewall exterior when closed |
94 |
| 383/85 |
Bag walls designed to be rolled together or folded on common fold line |
37 |
| 383/86 |
Reusable |
149 |
| 383/87 |
Flap side edges permanently secured to bag (e.g., sandwich bag type) |
56 |
| 383/86.1 |
Including fastening element removably extending through aperture in bag material |
2 |
| 383/86.2 |
Aperture extends through closure flap |
5 |
| 383/92 |
Including securing element designed to extend through aligned openings in bag material (e.g., stitching) |
22 |
| 383/78 |
Including separate closure element for straddling bag mouth (i.e., overlaps exterior portions of opposed bag walls) |
56 |
| 383/83 |
Bag walls designed to be rolled together or folded on common fold line |
6 |
| 383/80 |
Cap-type |
84 |
| 383/79 |
Including securing element designed to extend through aligned openings in closure element (e.g., stitching) |
26 |
| 383/81 |
Reusable |
57 |
| 383/82 |
Bag walls designed to be rolled together or folded on common fold line |
12 |
| 383/61.1 |
Independent closures for single access opening |
52 |
| 383/61.4 |
Having drawstring-type element |
5 |
| 383/61.2 |
Having rib and groove |
194 |
| 383/61.5 |
Having securing element designed to extend through aligned openings in bag material (e.g., stitching, etc.) |
3 |
| 383/61.3 |
Having zipper |
31 |
| 383/98 |
Overlapped flaps |
34 |
| 383/99 |
Reusable |
46 |
| 383/63 |
Rib and groove |
580 |
| 383/65 |
Including means to facilitate disengagement |
123 |
| 383/64 |
With sliding element |
252 |
| 383/43 |
Self-closing type |
92 |
| 383/44 |
Responsive to content (e.g., valve) |
79 |
| 383/57 |
Closure includes inwardly folded bag wall portions |
11 |
| 383/55 |
Folded bag corner |
6 |
| 383/56 |
Including separate closure element |
9 |
| 383/53 |
In distinct end wall |
9 |
| 383/54 |
Including separate closure element |
34 |
| 383/58 |
Overlying access opening in bag material |
11 |
| 383/46 |
With closure reinforcing or stiffening means |
14 |
| 383/47 |
With means to facilitate opening closure |
7 |
| 383/48 |
With supplemental closing feature |
30 |
| 383/52 |
Adhesive |
12 |
| 383/49 |
Resilient |
10 |
| 383/50 |
Reversely folded portion of closure element |
9 |
| 383/51 |
Slit or slot |
6 |
| 383/45 |
With vent |
28 |
| 383/70 |
Twisted bag mouth |
28 |
| 383/62 |
With provision for positioning closure element in nonuse location |
58 |
| 383/36 |
With integral funnel |
39 |
| 383/35 |
With means to facilitate manual separation of flattened bag walls |
136 |
| 383/33 |
With means to maintain the bag mouth in an open configuration |
234 |
| 383/34 |
Hinged mouth stiffeners |
46 |
| 383/34.1 |
Stiffeners include four or more hinged segments |
9 |
| 383/41 |
With plural access openings |
186 |
| 383/32 |
With stacking feature |
47 |
| 383/100 |
With venting or ventilation means |
112 |
| 383/101 |
Fluid circulates between bag plies |
36 |
| 383/103 |
Opening in bag material |
234 |
| 383/102 |
Pervious material |
113 |
