Inventor
Robert M. Tjon-Joe-Pin
Inventor
Houston, TX, US
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C09Kprimary
C09KMaterials for miscellaneous applications, not provided for elsewhere52%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests24%
C12NMicroorganisms or enzymes10%
C04BLime, magnesia5%
C12YEnzymes5%
E21BEarth or rock drilling5%
PatentTitleYear
10,227,523Glycosyl hydrolase enzymes in high temperature industrial processes20196,186,235'Stable breaker-crosslinker-polymer complex and method of use in completion and stimulation'20016,138,760'Pre-treatment methods for polymer-containing fluids'20006,110,875'Methods and materials for degrading xanthan'20005,881,813'Method for improved stimulation treatment'19995,806,597'Stable breaker-crosslinker-polymer complex and method of use in completion and stimulation'19985,566,759'Method of degrading cellulose-containing fluids during completions, workover and fracturing operations of oil and gas wells'19965,562,160'Fracturing fluid treatment design to optimize fluid rheology and proppant pack conductivity'19965,247,995'Method of dissolving organic filter cake obtained from polysaccharide based fluids used in production operations and completions of oil and gas wells'19935,224,544'Enzyme complex used for breaking crosslinked cellulose based blocking gels at low to moderate temperatures'19935,201,370'Enzyme breaker for galactomannan based fracturing fluid'1993Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1993–2001Patents assigned to BJ SERVICES CO (9)· patent assignee history
1993–2001Based in Houston, TX, US· patent location history
1996Patents assigned to B J SERVICES COMPANY (1)· patent assignee history
2019Patents assigned to ADVANCED ENZYME SYSTEMS LLC (1)· patent assignee history
2019Based in Spring, TX, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BJ SERVICES CO | 9 | 1993–2001 |
| ADVANCED ENZYME SYSTEMS LLC | 1 | 2019 |
| B J SERVICES COMPANY | 1 | 1996 |
Locations
| Location | Patents | Span |
|---|---|---|
| Houston, Texas, US | 10 | 1993–2001 |
| Spring, Texas, US | 1 | 2019 |