Growing community of inventors

Shanghai, China

Wanchai Ratanasirigulchai

Average Co-Inventor Count = 5.71

ph-index = 2

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 87

Wanchai RatanasirigulchaiKlaus B Huber (1 patent)Wanchai RatanasirigulchaiLawrence A Behrmann (1 patent)Wanchai RatanasirigulchaiWenbo Yang (1 patent)Wanchai RatanasirigulchaiA Glen Edwards (1 patent)Wanchai RatanasirigulchaiRobert A Parrott (1 patent)Wanchai RatanasirigulchaiKenneth R Goodman (1 patent)Wanchai RatanasirigulchaiSteven W Henderson (1 patent)Wanchai RatanasirigulchaiAlfredo Fayard (1 patent)Wanchai RatanasirigulchaiAndrew J Martin (1 patent)Wanchai RatanasirigulchaiManuel T Gonzalez (1 patent)Wanchai RatanasirigulchaiJoseph B Edone (1 patent)Wanchai RatanasirigulchaiJeffrey P Meisenhelder (1 patent)Wanchai RatanasirigulchaiWanchai Ratanasirigulchai (2 patents)Klaus B HuberKlaus B Huber (48 patents)Lawrence A BehrmannLawrence A Behrmann (38 patents)Wenbo YangWenbo Yang (33 patents)A Glen EdwardsA Glen Edwards (30 patents)Robert A ParrottRobert A Parrott (28 patents)Kenneth R GoodmanKenneth R Goodman (25 patents)Steven W HendersonSteven W Henderson (17 patents)Alfredo FayardAlfredo Fayard (13 patents)Andrew J MartinAndrew J Martin (7 patents)Manuel T GonzalezManuel T Gonzalez (4 patents)Joseph B EdoneJoseph B Edone (1 patent)Jeffrey P MeisenhelderJeffrey P Meisenhelder (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Schlumberger Technology Corporation (2 from 10,181 patents)


2 patents:

1. 7284612 - Controlling transient pressure conditions in a wellbore

2. 7000699 - Method and apparatus for orienting perforating devices and confirming their orientation

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as of
1/8/2026
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