Harold Dale MATHIAS

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Watsontown, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Moveable stair systems and methods
- Patent number 11,332,940
- Issue date May 17, 2022
- E.M.E.H., Inc.
- Bryan I. Charles
- E04 - BUILDING
Information Patent Grant
Moveable stair systems and methods
- Patent number 10,968,636
- Issue date Apr 6, 2021
- E.M.E.H., Inc.
- Bryan I. Charles
- E04 - BUILDING
Information Patent Grant
Stair expansion joint system with freedom of movement between landings
- Patent number 10,584,480
- Issue date Mar 10, 2020
- E.M.E.H., Inc.
- Bryan I. Charles
- E04 - BUILDING
Information Patent Grant
Stair expansion joint system with freedom of movement between landings
- Patent number 9,869,084
- Issue date Jan 16, 2018
- E.M.E.H., Inc.
- Bryan I. Charles
- E04 - BUILDING
Information Patent Grant
Stair expansion joint system with freedom of movement between landings
- Patent number 9,758,981
- Issue date Sep 12, 2017
- E.M.E.H., Inc.
- Bryan I. Charles
- E04 - BUILDING

Patents Applicationslast 30 patents

Information Patent Application
MOVEABLE STAIR SYSTEMS AND METHODS
- Publication number 20210189734
- Publication date Jun 24, 2021
- EMEH, INC.
- Bryan I. Charles
- E04 - BUILDING
Information Patent Application
MOVEABLE STAIR SYSTEMS AND METHODS
- Publication number 20200149284
- Publication date May 14, 2020
- E.M.E.H., INC.
- Bryan I. Charles
- E04 - BUILDING
Information Patent Application
STAIR EXPANSION JOINT SYSTEM WITH FREEDOM OF MOVEMENT BETWEEN LANDINGS
- Publication number 20180100301
- Publication date Apr 12, 2018
- E.M.E.H., INC.
- Bryan I. CHARLES
- E04 - BUILDING
Information Patent Application
STAIR EXPANSION JOINT SYSTEM WITH FREEDOM OF MOVEMENT BETWEEN LANDINGS
- Publication number 20160215496
- Publication date Jul 28, 2016
- E.M.E.H., INC.
- Bryan I. CHARLES
- E04 - BUILDING
Information Patent Application
STAIR EXPANSION JOINT SYSTEM WITH FREEDOM OF MOVEMENT BETWEEN LANDINGS
- Publication number 20160102461
- Publication date Apr 14, 2016
- E.M.E.H., INC.
- Bryan I. CHARLES
- E04 - BUILDING