PATENTS RELATED TO CENTRIFUGES

Professor Demchick's Patent Services

Paul H. Demchick, United States Registered Patent Agent
(United States Patent and Trademark Office Registration 52,808)

PATENTS RELATED TO CENTRIFUGES

Although it is not necessary for a patent agent to have personal experience with the specific subject matter, it has its advantages. Dr. Demchick's experience includes laboratory experience involving centrifuges.

Dr. Demchick is a scientist with a quarter of a century of research experience in academic, industrial and governmental settings.
If you are considering patent protection for an invention, Dr. Demchick will be glad to discuss the matter with you. There is no charge for an initial discussion.
The following sampling is to give you some sense of the types of centrifuges related inventions which have received United States patent protection. The patent list is not exhaustive and is certainly not a substitute for a proper patent search . It should be noted that only U.S. Patents are included.
It should be noted that spelling, form and typographical errors in the original patents are preserved here.

Screw centrifuge for the wet mechanical separation of solids (United States Patent 7,153,255)
Laboratory centrifuge with swing-out containers and aerodynamic cladding (United States Patent 7,150,708)
Continuous flow type centrifuge having rotor body and core body disposed therein (United States Patent 7,144,361)
Removable conformal liners for centrifuge containers (United States Patent 7,128,838)
Centrifuge adapter (United States Patent 7,118,522)
Method of simultaneous blood collection and separation using a continuous flow centrifuge having a separation channel (United States Patent 7,115,205)
Method for the separation of multi-phase mixture and decanting centrifuge system for carrying out said method (United States Patent 7,115,202)
Specimen centrifuge apparatus (United States Patent 7,112,303)
Centrifuge having multiple rotors (United States Patent 7,108,651)
Centrifuge rotor lid holder device (United States Patent 7,090,633)
Enhanced recovery of useful coal, potassium chloride and borax from screen bowl centrifuge (United States Patent 7,087,174)
Solid-bowl centrifuge having a disk stack on the drum cover (United States Patent 7,083,565)
Bayonet coupling mechanism for a centrifuge (United States Patent 7,081,081)
Apparatus and method for a high-efficiency self-cleaning centrifuge having concentrate cylinders (United States Patent 7,077,799)
Centrifuge having a centrifugal drum and a groove including a seal (United States Patent 7,074,173)
Solid bowl screw centrifuge comprising a distributor (United States Patent 7,060,019)
Centrifuge apparatus for processing blood (United States Patent 7,060,018)
Solid bowl screw centrifuge comprising a peeling disk, and method for the operation thereof (United States Patent 7,056,273)
Centrifuge having an emergency off system (United States Patent 7,056,272)
Centrifuge with clutch mechanism for synchronous blade and bowl rotation (United States Patent 7,044,904)
Rotatable machine or centrifuge with driving motors in a simple casing (United States Patent 7,041,044)
Fluid separation devices, systems and/or methods using a centrifuge and roller pump (United States Patent 7,033,512)
Centrifuge apparatus and method with improved temperature control (United States Patent 7,033,501)
Cleaning device for drum centrifuge (United States Patent 7,033,311)
Pusher centrifuge (United States Patent 7,032,759)
Rotary-cutting disk for a centrifuge for a centrifuge with a duct wall contoured in a wave shape (United States Patent 7,025,715)
Process to balance a rotatable plate of a centrifuge and centrifuge using the process (United States Patent 7,025,714)
Double pusher centrifuge (United States Patent 7,025,211)
Centrifuge discharge port with power recovery (United States Patent 7,022,061)
Centrifuge with impellers and beach feed (United States Patent 7,018,326)
Multi-stage pusher centrifuge (United States Patent 7,017,756)
Attachment and release apparatus for a centrifuge rotor cover (United States Patent 7,011,618)
Circumferentially driven continuous flow centrifuge (United States Patent 7,008,366)
Centrifuge having a feeler element for sensing a medium level (United States Patent 7,008,365)
Method of retrofitting a decanting centrifuge (United States Patent 7,001,324)
Flow-through drum centrifuge (United States Patent 6,991,738)
Solid bowl helical conveyor centrifuge with a pressurized housing (United States Patent 6,986,733)
Loading-assisting apparatus for use with centrifuge (United States Patent 6,985,828)
Centrifuge system utilizing disposable components and automated processing of blood to collect platelet rich plasma (United States Patent 6,982,038)
Centrifuge control system with power loss ride through (United States Patent 6,981,940)
Centrifuge for the purification of lubricating oil of an internal-combustion engine (United States Patent 6,974,408)
Centrifuge with combinations of multiple features (United States Patent 6,971,525)
Probability centrifuge algorithm with minimum laterally adiabatically-reduced Fisher information calculation (United States Patent 6,970,110)
Centrifuge with a sieve system and method for operating the same (United States Patent 6,969,343)
Concentric tubular centrifuge (United States Patent 6,966,874)
Blood centrifuge having overhanging disposable blood container (United States Patent 6,951,612)
Centrifuge for phase separation (United States Patent 6,939,286)
Method for vibration in a centrifuge (United States Patent 6,932,913)
Centrifuge with a variable frequency drive and a single motor and clutch mechanism (United States Patent 6,932,757)
Centrifuge with separate hero turbine (United States Patent 6,929,596)
Centrifuge comprising a blood bag system with an upper and lower outlet (United States Patent 6,910,998)
Screw for a solid-bowl centrifuge and a method of extracting oil using the centrifuge (United States Patent 6,908,423)
Handheld and hand-powered centrifuge device (United States Patent 6,905,454)
Disposable centrifuge with molded gear drive and impulse turbine (United States Patent 6,893,389)
Control device for a laboratory centrifuge (United States Patent 6,879,262)
Centrifuge with sieve and method for operating said centrifuge (United States Patent 6,869,389)
Large mouth centrifuge labware (United States Patent 6,866,826)
Centrifuge having a magnetic actuator for loading and unloading buckets and a method of loading/unloading the buckets on the centrifuge (United States Patent 6,866,623)
Laboratory centrifuge, comprising refrigeration unit (United States Patent 6,866,621)
System and process for separating multi phase mixtures using three phase centrifuge and fuzzy logic (United States Patent 6,860,845)
Bio cell cleaning centrifuge having bio cell cleaning rotor provided with cleaning liquid distributor (United States Patent 6,857,997)
Bio cell cleaning centrifuge having detachable chamber body (United States Patent 6,846,281)
Centrifuge tube assembly (United States Patent 6,835,353)
Centrifuge and container system for treatment of blood and blood components (United States Patent 6,835,171)
Centrifuge with sensors for detecting centrifuge conditions (United States Patent 6,832,980)
Flexible centrifuge bag and methods of use (United States Patent 6,827,863)
Centrifuge (United States Patent 6,827,680)
Shaped diaphragm for a centrifuge system rotor (United States Patent 6,824,506)
Centrifuge for mechanical draining and thermal drying of sludges (United States Patent 6,823,605)
Centrifuge rotor with low-pressure shut-off and capacity sensor (United States Patent 6,821,241)
Centrifuge for extracting interstitial fluid (United States Patent 6,817,970)
Horizontal centrifuge rotor (United States Patent 6,811,531)
Concentric tubular centrifuge (United States Patent 6,808,481)
Centrifuge with a magnetically stabilized rotor for centrifugal goods (United States Patent 6,806,604)
System and method for receptacle wall vibration in a centrifuge (United States Patent 6,805,805)
Preparation of high performance silica slurry using a centrifuge (United States Patent 6,802,983)
Method and apparatus for sterilizing internal passages of a centrifuge centrate gate (United States Patent 6,800,053)
Internal seal for a disposable centrifuge (United States Patent 6,793,615)
Centrifuge with feed tube adapter (United States Patent 6,790,169)
Centrifuge with open conveyor having an accelerating impeller and flow enhancer (United States Patent 6,780,147)
Automatic tube bowl centrifuge for centrifugal separation of liquids and solids with solids discharge using a scraper or piston (United States Patent 6,776,752)
Centrifuge with rotor having identification elements arranged along the circumference of a circle whose center coincides with the rotor's axis of rotation (United States Patent 6,764,437)
Automated centrifuge system for automatically centrifuging liquids containing biological materials (United States Patent 6,758,803)
Centrifuge (United States Patent 6,755,969)
Screw-type solid bowl centrifuge having a baffle plate arrangement (United States Patent 6,749,552)
Motor torque control to reduce possibility of centrifuge rotor accidents (United States Patent 6,747,427)
Removable conformal liners for centrifuge containers (United States Patent 6,746,601)
Swing-out-rotor laboratory centrifuge with noise abatement system (United States Patent 6,746,391)
Solid bowl centrifuge with liquid release during rotation (United States Patent 6,740,027)
Horizontal scroll screen centrifuge (United States Patent 6,736,968)
Blood centrifuge cup having a replaceable compartment for filter support (United States Patent 6,723,238)
Centrifuge and cascade for the separation of gases (United States Patent 6,716,269)
Centrifuge with a fluid line guide element having a curved bearing surface (United States Patent 6,716,154)
Centrifuge with orbiting bobbins (United States Patent 6,716,152)
Screw centrifuge for the wet mechanical separation of solids (United States Patent 7,153,255)
Laboratory centrifuge with swing-out containers and aerodynamic cladding (United States Patent 7,150,708)
Continuous flow type centrifuge having rotor body and core body disposed therein (United States Patent 7,144,361)
Removable conformal liners for centrifuge containers (United States Patent 7,128,838)
Centrifuge adapter (United States Patent 7,118,522)
Method of simultaneous blood collection and separation using a continuous flow centrifuge having a separation channel (United States Patent 7,115,205)
Method for the separation of multi-phase mixture and decanting centrifuge system for carrying out said method (United States Patent 7,115,202)
Specimen centrifuge apparatus (United States Patent 7,112,303)
Centrifuge having multiple rotors (United States Patent 7,108,651)
Centrifuge rotor lid holder device (United States Patent 7,090,633)
Enhanced recovery of useful coal, potassium chloride and borax from screen bowl centrifuge (United States Patent 7,087,174)
Solid-bowl centrifuge having a disk stack on the drum cover (United States Patent 7,083,565)
Bayonet coupling mechanism for a centrifuge (United States Patent 7,081,081)
Apparatus and method for a high-efficiency self-cleaning centrifuge having concentrate cylinders (United States Patent 7,077,799)
Centrifuge having a centrifugal drum and a groove including a seal (United States Patent 7,074,173)
Solid bowl screw centrifuge comprising a distributor (United States Patent 7,060,019)
Centrifuge apparatus for processing blood (United States Patent 7,060,018)
Solid bowl screw centrifuge comprising a peeling disk, and method for the operation thereof (United States Patent 7,056,273)
Centrifuge having an emergency off system (United States Patent 7,056,272)
Centrifuge with clutch mechanism for synchronous blade and bowl rotation (United States Patent 7,044,904)
Rotatable machine or centrifuge with driving motors in a simple casing (United States Patent 7,041,044)
Fluid separation devices, systems and/or methods using a centrifuge and roller pump (United States Patent 7,033,512)
Centrifuge apparatus and method with improved temperature control (United States Patent 7,033,501)
Cleaning device for drum centrifuge (United States Patent 7,033,311)
Pusher centrifuge (United States Patent 7,032,759)
Rotary-cutting disk for a centrifuge for a centrifuge with a duct wall contoured in a wave shape (United States Patent 7,025,715)
Process to balance a rotatable plate of a centrifuge and centrifuge using the process (United States Patent 7,025,714)
Double pusher centrifuge (United States Patent 7,025,211)
Centrifuge discharge port with power recovery (United States Patent 7,022,061)
Centrifuge with impellers and beach feed (United States Patent 7,018,326)
Multi-stage pusher centrifuge (United States Patent 7,017,756)
Attachment and release apparatus for a centrifuge rotor cover (United States Patent 7,011,618)
Circumferentially driven continuous flow centrifuge (United States Patent 7,008,366)
Centrifuge having a feeler element for sensing a medium level (United States Patent 7,008,365)
Method of retrofitting a decanting centrifuge (United States Patent 7,001,324)
Flow-through drum centrifuge (United States Patent 6,991,738)
Solid bowl helical conveyor centrifuge with a pressurized housing (United States Patent 6,986,733)
Loading-assisting apparatus for use with centrifuge (United States Patent 6,985,828)
Centrifuge system utilizing disposable components and automated processing of blood to collect platelet rich plasma (United States Patent 6,982,038)
Centrifuge control system with power loss ride through (United States Patent 6,981,940)
Centrifuge for the purification of lubricating oil of an internal-combustion engine (United States Patent 6,974,408)
Centrifuge with combinations of multiple features (United States Patent 6,971,525)
Probability centrifuge algorithm with minimum laterally adiabatically-reduced Fisher information calculation (United States Patent 6,970,110)
Centrifuge with a sieve system and method for operating the same (United States Patent 6,969,343)
Concentric tubular centrifuge (United States Patent 6,966,874)
Blood centrifuge having overhanging disposable blood container (United States Patent 6,951,612)
Centrifuge for phase separation (United States Patent 6,939,286)
Method for vibration in a centrifuge (United States Patent 6,932,913)
Centrifuge with a variable frequency drive and a single motor and clutch mechanism (United States Patent 6,932,757)
Centrifuge with separate hero turbine (United States Patent 6,929,596)
Centrifuge comprising a blood bag system with an upper and lower outlet (United States Patent 6,910,998)
Screw for a solid-bowl centrifuge and a method of extracting oil using the centrifuge (United States Patent 6,908,423)
Handheld and hand-powered centrifuge device (United States Patent 6,905,454)
Disposable centrifuge with molded gear drive and impulse turbine (United States Patent 6,893,389)
Control device for a laboratory centrifuge (United States Patent 6,879,262)
Centrifuge with sieve and method for operating said centrifuge (United States Patent 6,869,389)
Large mouth centrifuge labware (United States Patent 6,866,826)
Centrifuge having a magnetic actuator for loading and unloading buckets and a method of loading/unloading the buckets on the centrifuge (United States Patent 6,866,623)
Laboratory centrifuge, comprising refrigeration unit (United States Patent 6,866,621)
System and process for separating multi phase mixtures using three phase centrifuge and fuzzy logic (United States Patent 6,860,845)
Bio cell cleaning centrifuge having bio cell cleaning rotor provided with cleaning liquid distributor (United States Patent 6,857,997)
Bio cell cleaning centrifuge having detachable chamber body (United States Patent 6,846,281)
Centrifuge tube assembly (United States Patent 6,835,353)
Centrifuge and container system for treatment of blood and blood components (United States Patent 6,835,171)
Centrifuge with sensors for detecting centrifuge conditions (United States Patent 6,832,980)
Flexible centrifuge bag and methods of use (United States Patent 6,827,863)
Centrifuge (United States Patent 6,827,680)
Shaped diaphragm for a centrifuge system rotor (United States Patent 6,824,506)
Centrifuge for mechanical draining and thermal drying of sludges (United States Patent 6,823,605)
Centrifuge rotor with low-pressure shut-off and capacity sensor (United States Patent 6,821,241)
Centrifuge for extracting interstitial fluid (United States Patent 6,817,970)
Horizontal centrifuge rotor (United States Patent 6,811,531)
Concentric tubular centrifuge (United States Patent 6,808,481)
Centrifuge with a magnetically stabilized rotor for centrifugal goods (United States Patent 6,806,604)
System and method for receptacle wall vibration in a centrifuge (United States Patent 6,805,805)
Preparation of high performance silica slurry using a centrifuge (United States Patent 6,802,983)
Method and apparatus for sterilizing internal passages of a centrifuge centrate gate (United States Patent 6,800,053)
Internal seal for a disposable centrifuge (United States Patent 6,793,615)
Centrifuge with feed tube adapter (United States Patent 6,790,169)
Centrifuge with open conveyor having an accelerating impeller and flow enhancer (United States Patent 6,780,147)
Automatic tube bowl centrifuge for centrifugal separation of liquids and solids with solids discharge using a scraper or piston (United States Patent 6,776,752)
Centrifuge with rotor having identification elements arranged along the circumference of a circle whose center coincides with the rotor's axis of rotation (United States Patent 6,764,437)
Automated centrifuge system for automatically centrifuging liquids containing biological materials (United States Patent 6,758,803)
Centrifuge (United States Patent 6,755,969)
Screw-type solid bowl centrifuge having a baffle plate arrangement (United States Patent 6,749,552)
Motor torque control to reduce possibility of centrifuge rotor accidents (United States Patent 6,747,427)
Removable conformal liners for centrifuge containers (United States Patent 6,746,601)
Swing-out-rotor laboratory centrifuge with noise abatement system (United States Patent 6,746,391)
Solid bowl centrifuge with liquid release during rotation (United States Patent 6,740,027)
Horizontal scroll screen centrifuge (United States Patent 6,736,968)
Blood centrifuge cup having a replaceable compartment for filter support (United States Patent 6,723,238)
Centrifuge and cascade for the separation of gases (United States Patent 6,716,269)
Centrifuge with a fluid line guide element having a curved bearing surface (United States Patent 6,716,154)
Centrifuge with orbiting bobbins (United States Patent 6,716,152)
Screw centrifuge for the wet mechanical separation of solids (United States Patent 7,153,255)
Laboratory centrifuge with swing-out containers and aerodynamic cladding (United States Patent 7,150,708)
Continuous flow type centrifuge having rotor body and core body disposed therein (United States Patent 7,144,361)
Removable conformal liners for centrifuge containers (United States Patent 7,128,838)
Centrifuge adapter (United States Patent 7,118,522)
Method of simultaneous blood collection and separation using a continuous flow centrifuge having a separation channel (United States Patent 7,115,205)
Method for the separation of multi-phase mixture and decanting centrifuge system for carrying out said method (United States Patent 7,115,202)
Specimen centrifuge apparatus (United States Patent 7,112,303)
Centrifuge having multiple rotors (United States Patent 7,108,651)
Centrifuge rotor lid holder device (United States Patent 7,090,633)
Enhanced recovery of useful coal, potassium chloride and borax from screen bowl centrifuge (United States Patent 7,087,174)
Solid-bowl centrifuge having a disk stack on the drum cover (United States Patent 7,083,565)

Although his recognition as a registered patent agent permits him to represent others in all patent matters before the United States Patent and Trademark Office, Dr. Demchick limits his practice to patent matters involving inventions for which he is confident that his expertise will allow him to serve his client well. He will gladly discuss whether he is comfortable handling cases involving inventions in a particular field. He will err on the side of declining cases if he has uncertainty about his ability to do what is needed in the case. Dr. Demchick does not represent clients in court. However, he refers clients to a patent attorney who does represent others in court, if it appears likely that patent related representation in court is appropriate. Dr. Demchick prepares and files non-provisional (regular) patent applications and provisional patent applications. He prepares and files utility patent applications and design patent applications. He prepares and files U.S. patent applications and international patent applications under the Patent Cooperation Treaty (PCT). He prepares and files applications to enter the U.S. National Phase for inventions for which international patent applications (PCT) were already filed. One of the matters he discusses with each client or potential client is which type of application(s) best meets that client's needs. He usually does a patent search (patentability search) as part of the preparation of a patent application. He discusses the value of patent searching with each inventor before agreeing to prepare a patent application for that inventor.