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

Patent Owner(s)

Patent Owner	Address
LASER GUIDANCE INC	14746 NE 95TH STREET REDMOND WA 98052-2519

International Classification(s)

• F21V:FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES....
• F21W:INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21L,....
• F21Y:INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21L,....
• F21K:LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
• B64F:GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Shemwell, David Mark	Newcastle, US	7	4
# of filed Patents : 7 Total Citations : 4
Vetter, Alan August	Duarte, US	3	3
# of filed Patents : 3 Total Citations : 3

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Patent Citation Ranking

• 0 Citation Count
• F21V Class

• 0 % this patent is cited more than
• 7 Age

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
7.5 Year Payment	$3600.00	$1800.00	$900.00	Jul 9, 2025
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Jul 9, 2029

Fee	Large entity fee	small entity fee	micro entity fee
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
January 09, 2018	US,9863601,B2   US9863601B2	GRANTED PATENT AS SECOND PUBLICATION
May 19, 2016	US,20160138775,A1   US20160138775A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9863601

Light emitting diode based PAPI method and system incorporating diode arrays and cylindrical optics

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Abstract

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Overcoming limitation in brightness and heating effects for LED based Precision Approach Path Indicators and allowing both colors to be imaged in the far field with the proper abrupt transition between the red and white sectors, making use of linear arrays of LED's and cylindrical optics.

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Description

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Claims

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Legal Events

 

• FEPP2021
• MAFP2021
• PD2018
• I2018
• STCF2017
• P2016
• AS2015
• F2015

Date	Code	Event	Description
Jul 12, 2021	FEPP	FEE PAYMENT PROCEDURE	free format text: SURCHARGE FOR LATE PAYMENT, SMALL ENTITY (ORIGINAL EVENT CODE: M2554); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY
Jul 12, 2021	MAFP	MAINTENANCE FEE PAYMENT	free format text: PAYMENT OF MAINTENANCE FEE, 4TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2551); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY year of fee payment: 4
Jan 10, 2018	PD	Priority Date
Jan 09, 2018	I	Issuance
Dec 20, 2017	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
May 19, 2016	P	Published
Oct 15, 2015	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SHEMWELL, DAVID MARK;VETTER, ALAN AUGUST;REEL/FRAME:036891/0574 Owner name: LASER GUIDANCE INC., WASHINGTON Effective Date: Oct 15, 2015
Oct 05, 2015	F	Filing