Producing frameless domes

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:: PERFORMING OPERATIONS; TRANSPORTING
Class:: WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
Subclass:: PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE

Filing statistics

IPC B29D 25/00 belongs to the parent subclass B29D, which recorded 68,717 patent applications worldwide between 2013 and 2023. Annual filings grew from 5,332 in 2013 to 6,141 in 2023 (+15%), peaking at 6,791 applications in 2020. The most active applicants in class B29 are HEWLETT-PACKARD DEVELOPMENT COMPANY (3,802 applications), BOEING COMPANY (3,087 applications) and COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN (2,315 applications).

Source: EPO PATSTAT, worldwide filings

Related Keywords

making DOMES of plastics

Top Applicants

Top 10 applicants by patent filingsfor class B29, 2013–2023, worldwide · Source: EPO PATSTAT

HEWLETT-PACKARD DEVELOPMENT COMPANY US 3,802
BOEING COMPANY US 3,087
COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN FR 2,315
SUMITOMO RUBBER IND 1,784
GE (GENERAL ELECTRIC COMPANY) US 1,663
CANON 1,658
3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 1,587
TORAY INDUSTRIES JP 1,555
BASF (BADISCHE ANILIN & SODA FABRIK) DE 1,470
LG CHEM KR 1,415