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• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
OTTO LADDER SAFETY INC	11686 DEERFIELD DR OAKTON VA 22124

International Classification(s)

• G08B:SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; A....
• G01L:MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL ....
• E06C:LADDERS
• H04W:WIRELESS COMMUNICATION NETWORKS
• G01D:MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VAR....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Bullard, Joseph Krumme	West Chester, US	25	51
Haynes, Clinton A	Mason, US	31	202
Morrow, Daniel L	Batavia, US	22	60
Read, Shannon R	Lebanon, US	21	108

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
3.5 Year Payment	$1600.00	$800.00	$400.00	May 15, 2026
7.5 Year Payment	$3600.00	$1800.00	$900.00	May 15, 2030
11.5 Year Payment	$7400.00	$3700.00	$1850.00	May 15, 2034

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 3.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
Surcharge - 7.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
Surcharge - 11.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
Surcharge after expiration - Late payment is unavoidable	$700.00	$350.00	$175.00
Surcharge after expiration - Late payment is unintentional	$1,640.00	$820.00	$410.00

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
November 15, 2022	US,11499370,B2   US11499370B2	GRANTED PATENT AS SECOND PUBLICATION
November 05, 2020	US,20200347674,A1   US20200347674A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent Application No: 11499370

Ladder having sensor and computing device for same

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