US 12,007,077 B2
LED filament and LED light bulb
Tao Jiang, Zhejiang (CN); MingBin Wang, Zhejiang (CN); Yuexing Li, Zhejiang (CN); Zhichao Zhang, Zhejiang (CN); Chihshan Yu, Zhejiang (CN); Aiming Xiong, Zhejiang (CN); Lin Zhou, Zhejiang (CN); and JunFeng Xu, Zhejiang (CN)
Assigned to ZHEJIANG SUPER LIGHTING ELECTRIC APPLIANCE CO., LTD., Zhejiang (CN)
Filed by ZHEJIANG SUPER LIGHTING ELECTRIC APPLIANCE CO., LTD., Zhejiang (CN)
Filed on Mar. 24, 2023, as Appl. No. 18/126,000.
Application 18/126,000 is a continuation in part of application No. 17/900,897, filed on Sep. 1, 2022, granted, now 11,629,825.
Application 17/900,897 is a continuation in part of application No. 17/408,519, filed on Aug. 23, 2021, granted, now 11,686,436.
Application 17/900,897 is a continuation of application No. 17/356,576, filed on Jun. 24, 2021, granted, now 11,525,547, issued on Dec. 13, 2022.
Application 17/356,576 is a continuation of application No. 16/914,461, filed on Jun. 28, 2020, granted, now 11,085,591, issued on Aug. 10, 2021.
Application 17/408,519 is a continuation in part of application No. 16/894,913, filed on Jun. 8, 2020, granted, now 11,421,827, issued on Aug. 3, 2022.
Application 16/914,461 is a continuation of application No. 16/840,469, filed on Apr. 6, 2020, granted, now 10,711,951, issued on Jul. 14, 2020.
Application 16/894,913 is a continuation in part of application No. 16/748,070, filed on Jan. 21, 2020, granted, now 10,784,428, issued on Sep. 22, 2020.
Application 16/840,469 is a continuation of application No. 16/505,732, filed on Aug. 28, 2019, granted, now 10,677,396, issued on Jun. 9, 2020.
Application 16/748,070 is a continuation in part of application No. 16/234,124, filed on Dec. 27, 2018, granted, now 10,845,008, issued on Nov. 24, 2020.
Application 16/234,124 is a continuation in part of application No. 15/858,036, filed on Dec. 29, 2017, granted, now 10,544,905, issued on Jan. 28, 2020.
Application 16/505,732 is a continuation in part of application No. 29/627,379, filed on Nov. 27, 2017, granted, now D879330, issued on Mar. 24, 2020.
Application 29/627,379 is a continuation in part of application No. 15/723,297, filed on Oct. 3, 2017, granted, now 10,655,792, issued on May 19, 2020.
Application 15/723,297 is a continuation in part of application No. 29/619,287, filed on Sep. 28, 2017, granted, now D862740, issued on Oct. 8, 2019.
Application 15/723,297 is a continuation in part of application No. 15/499,143, filed on Apr. 27, 2017, granted, now 10,240,724, issued on Mar. 26, 2019.
Application 15/499,143 is a continuation in part of application No. 15/384,311, filed on Dec. 19, 2016, granted, now 10,487,987, issued on Nov. 26, 2019.
Application 15/384,311 is a continuation in part of application No. 15/366,535, filed on Dec. 1, 2016, granted, now 10,473,271, issued on Nov. 12, 2019.
Application 15/723,297 is a continuation in part of application No. 15/308,995, granted, now 10,718,979, issued on Sep. 22, 2020, previously published as PCT/CN2015/098015, filed on Sep. 25, 2015.
Application 15/366,535 is a continuation in part of application No. 15/237,983, filed on Aug. 16, 2016, granted, now 10,228,093, issued on Mar. 12, 2019.
Application 15/384,311 is a continuation in part of application No. 15/237,983.
Application 15/723,297 is a continuation in part of application No. 15/168,541, filed on May 31, 2016, granted, now 9,995,474, issued on Jun. 12, 2018.
Claims priority of application No. 201410510593.6 (CN), filed on Sep. 28, 2014; application No. 201510053077.X (CN), filed on Feb. 2, 2015; application No. 201510316656.9 (CN), filed on Jun. 10, 2015; application No. 201510347410.8 (CN), filed on Jun. 19, 2015; application No. 201510489363.0 (CN), filed on Aug. 7, 2015; application No. 201510502630.3 (CN), filed on Aug. 17, 2015; application No. 201510555889.4 (CN), filed on Sep. 2, 2015; application No. 201510966906.3 (CN), filed on Dec. 19, 2015; application No. 201610041667.5 (CN), filed on Jan. 22, 2016; application No. 201610272153.0 (CN), filed on Apr. 27, 2016; application No. 201610281600.9 (CN), filed on Apr. 29, 2016; application No. 201610394610.3 (CN), filed on Jun. 3, 2016; application No. 201610544049.2 (CN), filed on Jul. 7, 2016; application No. 201610586388.7 (CN), filed on Jul. 22, 2016; application No. 201610936171.4 (CN), filed on Nov. 1, 2016; application No. 201611108722.4 (CN), filed on Dec. 6, 2016; application No. 201710024877.8 (CN), filed on Jan. 13, 2017; application No. 201710079423.0 (CN), filed on Feb. 14, 2017; application No. 201710138009.2 (CN), filed on Mar. 9, 2017; application No. 201710180574.5 (CN), filed on Mar. 23, 2017; application No. 201710234618.8 (CN), filed on Apr. 11, 2017; application No. 201710316641.1 (CN), filed on May 8, 2017; application No. 201710839083.7 (CN), filed on Sep. 18, 2017; application No. 201730450712.8 (CN), filed on Sep. 21, 2017; application No. 201730453237.X (CN), filed on Sep. 22, 2017; application No. 201730453239.9 (CN), filed on Sep. 22, 2017; application No. 201710883625.0 (CN), filed on Sep. 26, 2017; application No. 201730489929.X (CN), filed on Oct. 16, 2017; application No. 201730517887.6 (CN), filed on Oct. 27, 2017; application No. 201730518659.0 (CN), filed on Oct. 27, 2017; application No. 201730520672.X (CN), filed on Oct. 30, 2017; application No. 201730537542.7 (CN), filed on Nov. 3, 2017; application No. 201730537544.6 (CN), filed on Nov. 3, 2017; application No. 201711434993.3 (CN), filed on Dec. 26, 2017; application No. 201711477767.3 (CN), filed on Dec. 29, 2017; application No. 201810031786.1 (CN), filed on Jan. 12, 2018; application No. 201810065369.9 (CN), filed on Jan. 23, 2018; application No. 201810343825.1 (CN), filed on Apr. 17, 2018; application No. 201810344630.9 (CN), filed on Apr. 17, 2018; application No. 201810498980.0 (CN), filed on May 23, 2018; application No. 201810501350.4 (CN), filed on May 23, 2018; application No. 201810573314.9 (CN), filed on Jun. 6, 2018; application No. 201810836433.9 (CN), filed on Jul. 26, 2018; application No. 201810943054.X (CN), filed on Aug. 17, 2018; application No. 201811005145.5 (CN), filed on Aug. 30, 2018; application No. 201811005536.7 (CN), filed on Aug. 30, 2018; application No. 201811079889.1 (CN), filed on Sep. 17, 2018; application No. 201811277980.4 (CN), filed on Oct. 30, 2018; application No. 201811285657.1 (CN), filed on Oct. 31, 2018; application No. 201811378173.1 (CN), filed on Nov. 19, 2018; application No. 201811378189.2 (CN), filed on Nov. 19, 2018; application No. 201811549205.X (CN), filed on Dec. 18, 2018; application No. 201910060475.2 (CN), filed on Jan. 22, 2019; application No. 201910497661.2 (CN), filed on Jun. 10, 2019; application No. 201911057715.X (CN), filed on Nov. 1, 2019; application No. 201911234236.0 (CN), filed on Dec. 5, 2019; application No. 202010856691.0 (CN), filed on Aug. 24, 2020; application No. 202010904065.4 (CN), filed on Sep. 1, 2020; application No. 202010912636.9 (CN), filed on Sep. 3, 2020; application No. 202011313059.8 (CN), filed on Nov. 20, 2020; application No. 202110108853.7 (CN), filed on Jan. 27, 2021; and application No. 202110779145.6 (CN), filed on Jul. 9, 2021.
Prior Publication US 2023/0265977 A1, Aug. 24, 2023
Int. Cl. F21K 9/232 (2016.01); F21K 9/235 (2016.01); F21K 9/238 (2016.01); F21V 3/10 (2018.01); F21Y 107/00 (2016.01); F21Y 107/20 (2016.01); F21Y 107/70 (2016.01); F21Y 115/10 (2016.01); H05B 45/00 (2022.01)
CPC F21K 9/232 (2016.08) [F21K 9/235 (2016.08); F21K 9/238 (2016.08); F21V 3/10 (2018.02); H05B 45/00 (2020.01); F21Y 2107/00 (2016.08); F21Y 2107/20 (2016.08); F21Y 2107/70 (2016.08); F21Y 2115/10 (2016.08)] 11 Claims
OG exemplary drawing
 
1. An LED light bulb, comprising:
a lamp housing having a central axis;
a bulb base connected to the lamp housing and substantially being coaxial with the lamp housing;
a stem disposed in the lamp housing along the central axis of the lamp housing;
a first conductive support and a second conductive support disposed in the lamp housing;
a driving circuit disposed in the bulb base and electrically connected to the first conductive support, the second conductive support, and the bulb base; and
a flexible LED filament disposed in the lamp housing and electrically connected to the first conductive support and the second conductive support, the flexible LED filament comprising:
two conductive electrodes, one of the two conductive electrodes disposed on one of two ends of the flexible LED filament and the other one of the two conductive electrode disposed on the other end of the flexible LED filament, and the two conductive electrodes electrically connected to the first conductive support;
a first LED section being bent in a first space curved shape and electrically connected to one of the two conductive electrodes;
a second LED section being bent in a second space curved shape and electrically connected to the other one of the two conductive electrodes; and
a conductive section disposed between the first LED section and the second LED section, the conductive section physically and electrically connected to the first LED section and the second LED section, and the conductive section further electrically connected to the second conductive support,
wherein, the conductive section includes a center point of the flexible LED filament,
wherein the flexible LED filament is bent in a third space curved shape comprising the first space curved shape and the second space curved shape.