The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 11, 2014

Filed:

Mar. 18, 2013
Applicant:

Hyundai Motor Company, Seoul, KR;

Inventors:

Tae Seok Seo, Suwon-si, KR;

In Chan Kim, Yongin-si, KR;

Byung Dae Choi, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 3/66 (2006.01); F16H 37/04 (2006.01); F16H 1/46 (2006.01);
U.S. Cl.
CPC ...
Abstract

A multi-stage automatic transmission in which planet gear mechanisms, external gears and friction elements are combined in order to realize nine forward gears and one rearward gear having excellent operating conditions for friction elements and superior shift range ratios, thereby achieving excellent power performance and fuel efficiency.


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