LB Office Chair

Information directly related to the 'LB office chair' primarily involves a model LB-2820 office chair and its patent information, with no clear evidence indicating a direct connection to specific international standards.

1. Patent Information for the LB-2820 Office Chair This model of office chair was applied for a design patent by Anji Longbo Furniture Co., Ltd. (Application No.: CN202230342832.7), with an authorization announcement number of CN307560221S. The application date was June 7, 2022, and the authorization date was September 23, 2022. According to Chinese patent law, the validity period for a design patent is 15 years, thus it remains valid until June 7, 2037. The key design point of the patent is 'shape,' with the perspective view being the most representative image highlighting the design features, indicating that the core innovation of the product lies in its external structure, possibly involving unique designs for the backrest, armrests, or base components.

2. Relevance to International Standards The ANSI/BIFMA X5.1-2017 standard mentioned in the search results is a mainstream testing standard for mechanical safety and durability of commercial office chairs in North America, applicable to general office seating such as executive chairs and staff chairs. However, it should be noted that this standard does not explicitly mention whether the 'LB office chair' falls within its testing scope, making it impossible to directly infer whether the LB-2820 complies with this standard. To verify its compliance, further investigation is needed to determine if the model has passed BIFMA certification or can provide relevant test reports.

3. Exclusion of Other Search Results Other results mentioning models WS 8211 and WS 8310 are Werksitz brand office chairs, with no direct connection to the 'LB' logo, thus excluding them as relevant information. This suggests that 'LB' may be an abbreviation for a specific brand or series, requiring further analysis in conjunction with the specific brand background.

Summary Currently, confirmed information includes the patent ownership and design features of the LB-2820 office chair, with additional verification required to determine its compliance with international standards. For further information on the product's safety, durability, or market positioning, it is recommended to contact the patent applicant, Anji Longbo Furniture Co., Ltd., or consult product certification information released through their official channels.