Database

Keywords

Record Count

PATENT SCOPE

EN_TI:(“xanthan gum* drilling fluid” or “gum xanthan* drilling fluid”) OR EN_AB:(“xanthan gum* drilling fluid” or “gum xanthan* drilling fluid”)

69

USPTO

(TTL/(xanthan AND gum) AND drilling) AND fluid) OR ABST/(((xanthan AND gum) AND drilling) AND fluid))

9

ESPACENET

“xanthan gum drilling fluid*” or “gum xanthan drilling fluid*” in the title or abstract

69

DERWENT

Topic = (“drilling fluid* xanthan”) OR Topic = (“fluid drilling* xanthan”) OR Topic = (“xanthan* drilling fluid”) OR Topic = (“xanthan* fluid drilling”) Databases = CDerwent, EDerwent, MDerwent Timespan = All years

366

INPI

Title: xantana and fluido and perfuração* Abstract: xantana and fluido and perfuração*

1