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Dennis McAndrews
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Jeffersonville, IN, US
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Patents Grants
last 30 patents
Information
Patent Grant
Air lance for removing pellets from tubes
Patent number
11,660,579
Issue date
May 30, 2023
Tubemaster, Inc.
Paul D Gossen
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Device and method for loading pellets into reactor tubes
Patent number
11,590,471
Issue date
Feb 28, 2023
Tubemaster, Inc.
Clifford L Johns
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Air lance for removing pellets from a tube
Patent number
11,406,955
Issue date
Aug 9, 2022
Tubemaster, Inc.
Clifford L Johns
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method for loading pellets
Patent number
10,493,417
Issue date
Dec 3, 2019
Tubemaster, Inc.
Douglas Keith Cornett
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Device for injecting gas into the tubes of a chemical reactor
Patent number
9,205,391
Issue date
Dec 8, 2015
Extundo Incorporated
Clifford L. Johns
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Device and method for dispensing catalyst pellets
Patent number
9,149,778
Issue date
Oct 6, 2015
Extundo Incorporated
Clifford L. Johns
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Device and method for dispensing pellets
Patent number
9,138,709
Issue date
Sep 22, 2015
Extundo Incorporated
Clifford L. Johns
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Carrying case conversion to desk
Patent number
8,752,912
Issue date
Jun 17, 2014
Extundo Incorporated
Clifford L. Johns
A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information
Patent Grant
Method for marking tubes in a shell and tube heat exchanger
Patent number
8,752,291
Issue date
Jun 17, 2014
Extundo Incorporated
Clifford L. Johns
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Grant
Device for loading catalyst into a reactor vessel
Patent number
8,646,492
Issue date
Feb 11, 2014
Extundo Incorporated
Clifford L. Johns
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Loading arrangement including a dam for confining catalyst and othe...
Patent number
8,562,270
Issue date
Oct 22, 2013
Extundo Incorporated
Clifford L. Johns
F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Patents Applications
last 30 patents
Information
Patent Application
Air Lance for Removing Pellets from Tubes
Publication number
20220008883
Publication date
Jan 13, 2022
Tubemaster, Inc.
Paul D. Gossen
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Device for Cleaning Inner Surface of Heat Exchanger Tubes
Publication number
20210310756
Publication date
Oct 7, 2021
Tubemaster, Inc.
Clifford L Johns
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Application
Device and Method for Loading Pellets Into Reactor Tubes
Publication number
20210220787
Publication date
Jul 22, 2021
Tubemaster, Inc.
Clifford L Johns
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Air Lance for Removing Pellets from a Tube
Publication number
20200338513
Publication date
Oct 29, 2020
Tubemaster, Inc.
Clifford L. Johns
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Method for Loading Pellets
Publication number
20180304219
Publication date
Oct 25, 2018
Tubemaster, Inc.
Douglas Keith Cornett
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Device and Method for Dispensing Catalyst Pellets
Publication number
20130233882
Publication date
Sep 12, 2013
Extundo Incorporated
Clifford L. JOHNS
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
DEVICE FOR INJECTING GAS INTO THE TUBES OF A CHEMICAL REACTOR
Publication number
20130160882
Publication date
Jun 27, 2013
Extundo Incorporated
Clifford L. Johns
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
DEVICE AND METHOD FOR DISPENSING PELLETS
Publication number
20130140322
Publication date
Jun 6, 2013
Extundo Incorporated
Clifford L. JOHNS
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
DEVICE FOR UNLOADING CATALYST FROM A REACTOR VESSEL
Publication number
20120237412
Publication date
Sep 20, 2012
Extundo Incorporated
Clifford L. Johns
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
METHOD FOR MARKING TUBES IN A SHELL AND TUBE HEAT EXCHANGER
Publication number
20120137517
Publication date
Jun 7, 2012
Tubemaster, Inc.
Clifford L. Johns
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Application
DEVICE FOR LOADING CATALYST INTO A REACTOR VESSEL
Publication number
20110283666
Publication date
Nov 24, 2011
Clifford L. Johns
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL