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U.S. PATENT AND TRADEMARK OFFICE
Patent Technology Monitoring Team (PTMT)

Patenting In Technology Classes,
Breakout By Organization

Count of 2011 - 2015 Utility Patent Grants,
By Calendar Year of Grant
With Patent Counts Based on Primary Patent Classification

- Explanation of Data -

Rank Ordered Listing of Organizations Receiving 5 or More Utility Patents During the Period
Having Primary Classification In

Class 182, Fire Escape, Ladder, or Scaffold

( technology class is determined by the primary classification assigned to the patent- see 'Explanation of Data' )
( patent ownership is determined by the first-named assignee listed on a patent )

The following table displays first-named assignees and counts of their associated patents, as distributed by the year of patent grant.
First-Named Assignee 2011 2012 2013 2014 2015 Total
~INDIVIDUALLY OWNED PATENT 54 81 76 90 68 369
WERNER CO. 11 9 13 2 5 40
DB INDUSTRIES LLC 0 0 3 5 6 14
HONEYWELL INTERNATIONAL INC. 0 3 1 2 6 12
WING ENTERPRISES, INC. 1 1 2 1 5 10
ZEDEL 2 4 1 1 1 9
D B INDUSTRIES, INC. 3 4 1 0 0 8
JLG INDUSTRIES, INC. 2 0 1 2 2 7
LATCHWAYS PLC 1 0 2 0 4 7
ALTECH INDUSTRIES, INC. 2 0 1 1 2 6
CATERPILLAR INC. 4 0 0 2 0 6
WILHELM LAYHER VERWALTUNGS-GMBH 0 0 2 0 4 6
3M INNOVATIVE PROPERTIES COMPANY 0 1 3 0 1 5
ALUMINUM LADDER COMPANY 1 0 4 0 0 5
REECHCRAFT, INC. 0 0 2 1 2 5
SAM CARBIS ASSET MANAGEMENT, LLC 0 0 0 2 3 5
SKY CLIMBER LLC 0 1 1 2 1 5



PTMT Contacts

Questions regarding these reports should be directed to:

U.S. Patent and Trademark Office
Electronic Information Products Division - PTMT
P.O Box 1450
Alexandria VA 22313-1450

tel: (571) 272-5600
fax: (571) 273-0110
email: oeip@uspto.gov

address of PTMT pages at the USPTO Web Site: http://www.uspto.gov/web/offices/ac/ido/oeip/taf/reports.htm
selected PTMT files available for download at : http://www.uspto.gov/web/offices/ac/ido/oeip/taf/data/


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