| Patent Number |
Title Of Patent |
Date Issued |
| RE35443 |
Purification of Q Beta replicase |
February 4, 1997 |
| A process of producing highly pure, Q Beta replicase having a high level of activity is described. The present process allows isolation of Q Beta replicase from recombinant bacteria containing a clone of a phage DNA encoding the 65,000 weight subunit of Q Beta replicase. The present |
| RE34447 |
Crystalline polyamide composition from dicarboxylic acid mixture and diamine |
November 16, 1993 |
| Novel crystalline polyamides having high heat deflection temperatures when filled are prepared from aliphatic diamines and either mixtures of terephthalic acid and adipic acid or mixtures of terephthalic acid, isophthalic acid and adipic acid. The mole ratio of aliphatic diamine to t |
| RE34435 |
Whirl resistant bit |
November 9, 1993 |
| A whirl resistant drill bit is disclosed for use in rotary drilling. The drill bit includes a generally cylindrical bit body with a plurality of cutting elements extending out from a lower end surface. The cutter elements are grouped in sets such that a first set of cutters are disposed |
| D354220 |
Closed disposable package |
January 10, 1995 |
|
| D354141 |
Test tray |
January 3, 1995 |
|
| D344974 |
Auto-radiogram image acquisition scanner |
March 8, 1994 |
|
| D342742 |
Fuel dispenser handle |
December 28, 1993 |
|
| D341595 |
Fuel dispenser handle |
November 23, 1993 |
|
| D338210 |
Fuel dispenser handle |
August 10, 1993 |
|
| D338209 |
Fuel dispenser handle |
August 10, 1993 |
|
| D326219 |
Knob |
May 19, 1992 |
|
| D323114 |
Sandwich container or the like |
January 14, 1992 |
|
| D320848 |
Single baffle tile for fixed heater for oil refineries |
October 15, 1991 |
|
| D318527 |
Double baffle tile for furnace for oil refineries |
July 23, 1991 |
|
| D318328 |
Triple baffle tile for fixed heater for oil refineries |
July 16, 1991 |
|
| D317969 |
Fuel dispensing nozzle with sight flow indicator |
July 2, 1991 |
|
| D317243 |
Combined quick release holder and slip resistant grip for fire hoses |
June 4, 1991 |
|
| D315526 |
Flow indicator for a fuel dispenser |
March 19, 1991 |
|
| D315100 |
Package and the like |
March 5, 1991 |
|
| D313834 |
Sprinkler for fighting petroleum fires and the like |
January 15, 1991 |
|
| D313459 |
Sprinkler for fighting fires in oil refineries and the like |
January 1, 1991 |
|
| D312445 |
Laser |
November 27, 1990 |
|
| D312377 |
Combined quick release holder and slip resistant grip for fire hoses |
November 27, 1990 |
|
| D312027 |
Plate or the like |
November 13, 1990 |
|
| D309431 |
Candy box and the like |
July 24, 1990 |
|
| D308826 |
Sandwich container and the like |
June 26, 1990 |
|
| D305209 |
Flow indicator for a fuel dispenser |
December 26, 1989 |
|
| D296462 |
Combined petroleum fuel spillage and overfill containment tank |
June 28, 1988 |
|
| D295102 |
Spent catalyst container |
April 5, 1988 |
|
| 5942452 |
Antiskid fabric |
August 24, 1999 |
| Composite fabrics particularly suited for upholstery backings and furniture decking comprise at least one layer of a needlepunched web of nonwoven staple fibers adhered to at least one layer of a substantially continuous filament nonwoven web comprising substantially randomly disposed |
| 5930730 |
Method and apparatus for seismic signal processing and exploration |
July 27, 1999 |
| A method, a map and an article of manufacture for the exploration of hydrocarbons. In one embodiment of the invention, the method comprises the steps of: accessing 3D seismic data; dividing the data into an array of relatively small three-dimensional cells; determining in each cell the |
| 5928862 |
Competitive homogeneous assay |
July 27, 1999 |
| Methods and compositions for performing assays for target polynucleotide strands include contacting a sample with a reagent which includes a first and a second polynucleotide probe. The first and second probes are capable of assuming a first position wherein the probes are bound to each |
| 5916958 |
Flame retardant thermoplastic compositions |
June 29, 1999 |
| Compositions comprising poly(biphenyl ether sulfone) PTFE and titanium dioxide exhibit enhanced flame retardant characteristics. Blends of the formulations may further comprise poly(aryl ether ketone) or another poly (aryl ether sulfone). |
| 5906664 |
Fuels for diesel engines |
May 25, 1999 |
| The invention relates to high energy, oxygenated fuel compositions suitable for use in compression ignition internal combustion engines which fuel compositions contain a synergistic combination of dimethyl ether, methanol, and water, the combination providing a single liquid phase with |
| 5892732 |
Method and apparatus for seismic signal processing and exploration |
April 6, 1999 |
| A method and apparatus for the exploration of hydrocarbons comprising the steps of: obtaining a set of seismic signal traces distributed over a predetermined three-dimensional volume of the earth; dividing the three-dimensional volume into a plurality of analysis cells having portion |
| 5890538 |
Reverse circulation float equipment tool and process |
April 6, 1999 |
| A user-friendly reverse circulation float equipment tool and process permit the application of reverse circulation cementing in shallow or deeper wells, without having to use an inner string. The reverse circulation float equipment tool can have: an upper section with a ball-activated |
| 5885481 |
Efficiency oxygen-scavenging compositions and articles |
March 23, 1999 |
| Oxygen-scavenging compositions comprising an oxidizable metal component and a solid, halogen-free, acidifying electrolyte component and, optionally, a water-absorbant binder and/or a polymeric resin exhibit good oxygen-scavenging performance and oxidation efficiency. The compositions |
| 5878817 |
Apparatus and process for closed loop control of well plunger systems |
March 9, 1999 |
| A well plunger system for the production of natural gas is described. The well plunger system includes a closed loop controller for the production of natural gas. The well plunger system includes a plunger tube positioned within a casing of a gas well, a tubing line connected to the plun |
| 5877378 |
Process for selective utilization of alpha-olefins in mixtures containing non-alpha-olefins |
March 2, 1999 |
| The alpha-olefin content of mixed hydrocarbon streams is selectively utilized to produce trialkylaluminum compounds in which the alkyl groups are linear primary alkyl groups. This selective utilization is accomplished by use of a specific, highly selective low residence-time, low iso |
| 5877375 |
Production of monoolefin oligomer |
March 2, 1999 |
| A monoolefin oligomerization process which gives high yields of dimer and trimer at high monoolefin conversions in a single stage reaction is described. The process involves contacting a C.sub.6-20 vinyl olefin with a catalyst comprising boron trifluoride and from 0.075 to 0.5 mol %, bas |
| 5870691 |
Spectral decomposition for seismic interpretation |
February 9, 1999 |
| The present invention is directed generally toward a method of processing seismic data so as to provide improved quantification and visualization of subtle seismic thin bed tuning effects and other sorts of lateral rock discontinuities. A reflection from a thin bed has a characteristic |
| 5863419 |
Sulfur removal by catalytic distillation |
January 26, 1999 |
| A product of reduced sulfur content is produced from a feedstock which is comprised of a mixture of hydrocarbons and contains organic sulfur compounds as unwanted impurities. The process comprises converting at least a portion of the sulfur-containing impurities to sulfur-containing |
| 5860475 |
Mixed well steam drive drainage process |
January 19, 1999 |
| A thermal oil recovery process is disclosed for use in a heavy oil reservoir having a plurality of laterally separated, generally vertical wells whose use have left the reservoir characterized by a heated depletion zone, a channel, voidage, or mobility and communication. The process |
| 5856607 |
Process for production of ethylbenzene frome dilute ethylene streams |
January 5, 1999 |
| The present invention relates to a process for the production of ethylbenzene from dilute ethylene streams, especially from mixtures of ethane and ethylene where such mixture is the offgas from a refinery operation, such as a fluid catalytic cracking (FCC) operation and wherein the u |
| 5856592 |
Continuous vapor phase process for direct conversion of methanol to higher alcohols |
January 5, 1999 |
| A continuous vapor phase processes for direct condensation of methanol and/or dimethyl ether with dilute acetylene feedstream to a mixture containing at least one higher molecular weight alkanol, such as n-propanol or isobutanol, over an alkaline catalyst which is, advantageously, an |
| 5853565 |
Controlling thermal coking |
December 29, 1998 |
| The invention provides a method for controlling the relative proportion of products produced from a petroleum residuum by thermal coking. Coke yield promoting compounds are identified, and effective attenuating agents are specified. The method can mitigate a coke promoting effect induced |
| 5850622 |
Time-frequency processing and analysis of seismic data using very short-time fourier transforms |
December 15, 1998 |
| The present invention relates generally to method of seismic data processing which provides a superior method of removing or attenuating some forms of seismic noise and can also be used as a basis for seismic attribute analysis and automatic trace editing. In particular, the present |
| 5849974 |
Olefin isomerization process |
December 15, 1998 |
| Described is a process for isomerizing .alpha.-olefin to produce olefinic oil having a viscosity at 100.degree. C. of no more than about 1.6 cSt, a viscosity at 40.degree. C. of no more than about 3.8 cSt, and a pour point of 0.degree. C. or lower, preferably -10.degree. C. or lower. The |
| 5849965 |
Multistage alkylation process |
December 15, 1998 |
| In a multistage process, a relatively unreactive paraffinic substrate is alkylated in a primary stage while a more reactive aromatic substrate is alkylated in a secondary stage wherein at least a portion of the effluent from the primary stage is used as a diluent in the secondary stage. |
| 5849504 |
Nucleic acid probes and methods for detecting Pneumocystis carinii |
December 15, 1998 |
| The invention features nucleic acid probes and methods for detecting Pneumocystis carinii (e.g., human or ferret P. carinii) in hybridization assays. |
