Donald Ewing

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Big Spring, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Sucker rod with adhesive-attached end piece
- Patent number 11,199,053
- Issue date Dec 14, 2021
- TRC Services, Inc.
- Donald Mike Johnson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Automated sucker rod spacing device and associated methods
- Patent number 11,168,549
- Issue date Nov 9, 2021
- TRC Services, Inc.
- Donald Ewing
- E21 - EARTH DRILLING MINING
Information Patent Grant
Automatic sucker rod spacing device and methods of using same
- Patent number 10,508,522
- Issue date Dec 17, 2019
- TRC Services, Inc.
- Michael Eric Johnson
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
SUCKER ROD WITH ADHESIVE-ATTTACHED END PIECE
- Publication number 20200232285
- Publication date Jul 23, 2020
- TRC SERVICES, INC.
- Donald Mike Johnson
- E21 - EARTH DRILLING MINING
Information Patent Application
Automated Sucker Rod Spacing Device and Associated Methods
- Publication number 20200182028
- Publication date Jun 11, 2020
- TRC SERVICES, INC.
- Donald Ewing
- E21 - EARTH DRILLING MINING
Information Patent Application
AUTOMATIC SUCKER ROD SPACING DEVICE
- Publication number 20170211365
- Publication date Jul 27, 2017
- TRC SERVICES, INC.
- Michael Eric Johnson
- E21 - EARTH DRILLING MINING