ZW

Ziqian Wu

TC Tecmen Electronics Co.: 46 patents #1 of 3Top 35%
LG Lincoln Global: 9 patents #66 of 485Top 15%
Overall (All Time): #41,092 of 4,157,543Top 1%
58
Patents All Time

Issued Patents All Time

Showing 25 most recent of 58 patents

Patent #TitleCo-InventorsDate
D1090998 Filter for a welding helmet Paul H. Rumpke, Chase P. Rutti, Joseph R. Brusky, Emily C. Payne 2025-08-26
D1071366 Hearing protector 2025-04-15
D1062076 Protective helmet 2025-02-11
12102160 Headgear with curved straps for welding helmet 2024-10-01
D1041768 Filter for a welding helmet Paul H. Rumpke, Emily C. Payne, Chase P. Rutti, Joseph R. Brusky 2024-09-10
D1001271 Respirator 2023-10-10
D1001270 Pressure regulation device 2023-10-10
D996593 Cooling device 2023-08-22
D994116 Respiration device 2023-08-01
D992828 Welding helmet Paul H. Rumpke, Emily C. Payne, Chase P. Rutti 2023-07-18
11690763 Combination of a goggle and a face mask 2023-07-04
D983355 Respiration device 2023-04-11
11576454 Headgear with curved straps for welding helmet 2023-02-14
11369520 Auto-darkening welding helmet 2022-06-28
D948131 Headgear of helmet Paul H. Rumpke, Chase P. Rutti, Richard D. Smith 2022-04-05
11147333 Headband arrangement and welding helmet equipped with the same 2021-10-19
D927785 Headgear of welding helmet 2021-08-10
11045356 Welding helmet having a zipper arrangement and welding helmet assembly 2021-06-29
D916383 Welding helmet 2021-04-13
10930902 Lockable fitting structure for an electric air-purifying respirator of an auto-darkening welding helmet 2021-02-23
10890792 Auto darkening filter capable of achieving high light-shielding number 2021-01-12
D900399 Protective helmet 2020-10-27
D900406 Auto darkening welding helmet 2020-10-27
D899698 Protective helmet 2020-10-20
10729202 Headband arrangement and welding helmet equipped with the same 2020-08-04