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

Patent Owner(s)

Patent Owner	Address
INTELLIHOT INC	2900 W MAIN STREET GALESBURG IL 61401

International Classification(s)

• F24H:FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING H....
• G06F:ELECTRIC DIGITAL DATA PROCESSING
• F24C:OTHER DOMESTIC STOVES OR RANGES; DETAILS OF DOMEST....

• 2013 Application Filing Year
• F24H Class
• 262 Applications Filed
• 223 Patents Issued To-Date
• 85.12 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Akasam, Sivaprasad	Peoria, US	114	779
# of filed Patents : 114 Total Citations : 779
Deivasigamani, Sridhar	Peoria, US	107	549
# of filed Patents : 107 Total Citations : 549

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Patent Citation Ranking

• 16 Citation Count
• F24H Class

• 87.16 % this patent is cited more than
• 10 Age

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Sep 3, 2026

Fee	Large entity fee	small entity fee	micro entity fee
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
March 03, 2015	US,8971694,B2   US8971694B2	GRANTED PATENT AS SECOND PUBLICATION
November 28, 2013	US,20130312671,A1   US20130312671A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 8971694

Control method for a hybrid tankless water heater

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Abstract

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An on demand tankless water heater system that is capable of quickly delivering water within a desired temperature range. The tankless water heater provides a hybrid heating method that contains a primary heating system and a secondary heating system disposed in a buffer tank that cooperate to facilitate control of output water temperature during water usage. A pressure differential switch detects low flow demand and allows the secondary heating system to provide immediate heating to the water. This secondary heating system provides a faster temperature response and fine tuning of output water temperature.

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Description

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Claims

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Claims data not available

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Legal Events

 

• MAFP2022
• AS2021
• MAFP2018
• AS2017
• AS2015
• I2015
• STCF2015
• P2013
• F2013
• PD2009

Date	Code	Event	Description
Aug 09, 2022	MAFP	MAINTENANCE FEE PAYMENT	free format text: PAYMENT OF MAINTENANCE FEE, 8TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2552); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY year of fee payment: 8
Nov 16, 2021	AS	ASSIGNMENT	free format text: SECURITY INTEREST;ASSIGNOR:INTELLIHOT INC.;REEL/FRAME:058689/0947 Owner name: ACQUIOM AGENCY SERVICES LLC, MINNESOTA Effective Date: Nov 16, 2021
Mar 18, 2018	MAFP	MAINTENANCE FEE PAYMENT	free format text: PAYMENT OF MAINTENANCE FEE, 4TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2551) year of fee payment: 4
Feb 27, 2017	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:INTELLIHOT GREEN TECHNOLOGIES, INC.;REEL/FRAME:041821/0050 Owner name: INTELLIHOT INC., ILLINOIS Effective Date: Feb 27, 2017
Sep 04, 2015	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DEIVASIGAMANI, SRIDHAR;AKASAM, SIVAPRASAD;REEL/FRAME:036497/0593 Owner name: INTELLIHOT GREEN TECHNOLOGIES, INC., ILLINOIS Effective Date: Sep 04, 2015
Mar 03, 2015	I	Issuance
Feb 11, 2015	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Nov 28, 2013	P	Published
Jun 25, 2013	F	Filing
Feb 03, 2009	PD	Priority Date