


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 CONTINUOUS POSITIVE AIRWAY PRESSURE (CPAP) Dr. Demchick has handled client patent matters related to continuous positive airway pressure (CPAP)
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 continuous positive airway pressure (CPAP) 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.
Method and apparatus for improving the comfort of CPAP (United States Patent 7,128,069)
Apparatus for controlling the pressure of gas by bubbling through a liquid, such as bubble CPAP (United States Patent 7,077,154)
Device for generating a continuous positive airway pressure (CPAP device) (United States Patent 7,047,968)
Fault diagnosis in CPAP and NIPPV devices (United States Patent 7,040,317)
Flow diverter for controlling the pressure and flow rate in CPAP device (United States Patent 7,036,506)
Carbon dioxide-based Bi-level CPAP control (United States Patent 6,990,980)
Administration of CPAP treatment pressure in presence of apnea (United States Patent 6,988,498)
Auto CPAP system profile information (United States Patent 6,920,877)
Flow diverter for controlling the pressure and flow rate in a CPAP device (United States Patent 6,895,964)
Auto CPAP (United States Patent 6,889,691)
Bubble CPAP cap for neonates (United States Patent 6,889,689)
CPAP humidifier (United States Patent 6,827,340)
Administration of CPAP treatment pressure in presence of apnea (United States Patent 6,817,361)
Flow diverter for controlling the pressure and flow rate in a CPAP device (United States Patent 6,745,770)
Fault diagnosis in CPAP and NIPPV devices (United States Patent 6,745,768)
CPAP humidifier having sliding access drawer (United States Patent 6,718,974)
Device for monitoring breathing during sleep and ramped control of CPAP treatment (United States Patent 6,705,315)
Method and device for switching the inspiration or expiration phase during CPAP therapy (United States Patent 6,626,176)
Fault diagnosis in CPAP and NIPPV devices (United States Patent 6,591,834)
Auto CPAP system profile information (United States Patent 6,550,478)
Pressure control in CPAP treatment or assisted respiration (United States Patent 6,526,974)
Administration of CPAP treatment pressure in presence of apnea (United States Patent 6,502,572)
Device and method for nonclinical monitoring of breathing during sleep, control of CPAP treatment and preventing apnea (United States Patent 6,398,739)
Administration of CPAP treatment pressure in presence of APNEA (United States Patent 6,367,474)
Apparatus and method for controlling the administration of CPAP treatment (United States Patent 6,363,933)
Flow estimation and compensation of flow-induced pressure swings in CPAP treatment and assisted respiration (United States Patent 6,332,463)
Process for switching the inspiration or expiration phase during CPAP therapy (United States Patent 6,318,365)
Auto CPAP system profile information (United States Patent 6,286,508)
Control of delivery pressure in CPAP treatment or assisted respiration (United States Patent 6,253,764)
Automated stop/start control in the administration of CPAP treatment (United States Patent 6,240,921)
Estimation of flow and detection of breathing CPAP treatment (United States Patent 6,237,593)
Inspiratory duration in CPAP or assisted respiration treatment (United States Patent 6,213,119)
Pressure control in CPAP treatment or assisted respiration (United States Patent 6,182,657)
CPAP pressure and flow transducer (United States Patent 6,135,106)
Facial masks for assisted respiration or CPAP (United States Patent 6,123,071)
Bilevel CPAP system with waveform control for both IPAP and EPAP (United States Patent 5,865,173)
CPAP nose mask (United States Patent 5,746,201)
Estimation of flow and detection of breathing in CPAP treatment (United States Patent 5,740,795)
Start-up ramp system for CPAP system with multiple ramp shape selection (United States Patent 5,682,878)
Auto CPAP system and method for preventing patient disturbance using airflow profile information (United States Patent 5,645,053)
Facial masks for assisted respiration or CPAP (United States Patent 5,560,354)
Control for CPAP apparatus (United States Patent 5,551,419)
Standby control for CPAP apparatus (United States Patent 5,503,146)
Cardio-respiratory control and monitoring system for determining CPAP pressure for apnea treatment (United States Patent 5,353,788)
Device and method for monitoring breathing during sleep, control of CPAP treatment, and preventing of apnea (United States Patent 5,245,995)
Nasal mask for CPAP having ballooning/moulding seal with wearer's nose and facial contours (United States Patent 5,243,971)
Humidifier for CPAP device (United States Patent 5,231,979)
Device for monitoring breathing during sleep and control of CPAP treatment that is patient controlled (United States Patent 5,199,424)
Device for generating by means of ejector action a continuous positive airway pressure (CPAP) during spontaneous breathing (United States Patent 5,193,532)
Method and apparatus for improving the comfort of CPAP (United States Patent 7,128,069)
Apparatus for controlling the pressure of gas by bubbling through a liquid, such as bubble CPAP (United States Patent 7,077,154)
Device for generating a continuous positive airway pressure (CPAP device) (United States Patent 7,047,968)
Fault diagnosis in CPAP and NIPPV devices (United States Patent 7,040,317)
Flow diverter for controlling the pressure and flow rate in CPAP device (United States Patent 7,036,506)
Carbon dioxide-based Bi-level CPAP control (United States Patent 6,990,980)
Administration of CPAP treatment pressure in presence of apnea (United States Patent 6,988,498)
Auto CPAP system profile information (United States Patent 6,920,877)
Flow diverter for controlling the pressure and flow rate in a CPAP device (United States Patent 6,895,964)
Auto CPAP (United States Patent 6,889,691)
Bubble CPAP cap for neonates (United States Patent 6,889,689)
CPAP humidifier (United States Patent 6,827,340)
Administration of CPAP treatment pressure in presence of apnea (United States Patent 6,817,361)
Flow diverter for controlling the pressure and flow rate in a CPAP device (United States Patent 6,745,770)
Fault diagnosis in CPAP and NIPPV devices (United States Patent 6,745,768)
CPAP humidifier having sliding access drawer (United States Patent 6,718,974)
Device for monitoring breathing during sleep and ramped control of CPAP treatment (United States Patent 6,705,315)
Method and device for switching the inspiration or expiration phase during CPAP therapy (United States Patent 6,626,176)
Fault diagnosis in CPAP and NIPPV devices (United States Patent 6,591,834)
Auto CPAP system profile information (United States Patent 6,550,478)
Pressure control in CPAP treatment or assisted respiration (United States Patent 6,526,974)
Administration of CPAP treatment pressure in presence of apnea (United States Patent 6,502,572)
Device and method for nonclinical monitoring of breathing during sleep, control of CPAP treatment and preventing apnea (United States Patent 6,398,739)
Administration of CPAP treatment pressure in presence of APNEA (United States Patent 6,367,474)
Apparatus and method for controlling the administration of CPAP treatment (United States Patent 6,363,933)
Flow estimation and compensation of flow-induced pressure swings in CPAP treatment and assisted respiration (United States Patent 6,332,463)
Process for switching the inspiration or expiration phase during CPAP therapy (United States Patent 6,318,365)
Auto CPAP system profile information (United States Patent 6,286,508)
Control of delivery pressure in CPAP treatment or assisted respiration (United States Patent 6,253,764)
Automated stop/start control in the administration of CPAP treatment (United States Patent 6,240,921)
Estimation of flow and detection of breathing CPAP treatment (United States Patent 6,237,593)
Inspiratory duration in CPAP or assisted respiration treatment (United States Patent 6,213,119)
Pressure control in CPAP treatment or assisted respiration (United States Patent 6,182,657)
CPAP pressure and flow transducer (United States Patent 6,135,106)
Facial masks for assisted respiration or CPAP (United States Patent 6,123,071)
Bilevel CPAP system with waveform control for both IPAP and EPAP (United States Patent 5,865,173)
CPAP nose mask (United States Patent 5,746,201)
Estimation of flow and detection of breathing in CPAP treatment (United States Patent 5,740,795)
Start-up ramp system for CPAP system with multiple ramp shape selection (United States Patent 5,682,878)
Auto CPAP system and method for preventing patient disturbance using airflow profile information (United States Patent 5,645,053)
Facial masks for assisted respiration or CPAP (United States Patent 5,560,354)
Control for CPAP apparatus (United States Patent 5,551,419)
Standby control for CPAP apparatus (United States Patent 5,503,146)
Cardio-respiratory control and monitoring system for determining CPAP pressure for apnea treatment (United States Patent 5,353,788)
Device and method for monitoring breathing during sleep, control of CPAP treatment, and preventing of apnea (United States Patent 5,245,995)
Nasal mask for CPAP having ballooning/moulding seal with wearer's nose and facial contours (United States Patent 5,243,971)
Humidifier for CPAP device (United States Patent 5,231,979)
Device for monitoring breathing during sleep and control of CPAP treatment that is patient controlled (United States Patent 5,199,424)
Device for generating by means of ejector action a continuous positive airway pressure (CPAP) during spontaneous breathing (United States Patent 5,193,532)
Method and apparatus for improving the comfort of CPAP (United States Patent 7,128,069)
Apparatus for controlling the pressure of gas by bubbling through a liquid, such as bubble CPAP (United States Patent 7,077,154)
Device for generating a continuous positive airway pressure (CPAP device) (United States Patent 7,047,968)
Fault diagnosis in CPAP and NIPPV devices (United States Patent 7,040,317)
Flow diverter for controlling the pressure and flow rate in CPAP device (United States Patent 7,036,506)
Carbon dioxide-based Bi-level CPAP control (United States Patent 6,990,980)
Administration of CPAP treatment pressure in presence of apnea (United States Patent 6,988,498)
Auto CPAP system profile information (United States Patent 6,920,877)
Flow diverter for controlling the pressure and flow rate in a CPAP device (United States Patent 6,895,964)
Auto CPAP (United States Patent 6,889,691)
Bubble CPAP cap for neonates (United States Patent 6,889,689)
CPAP humidifier (United States Patent 6,827,340)
Administration of CPAP treatment pressure in presence of apnea (United States Patent 6,817,361)
Flow diverter for controlling the pressure and flow rate in a CPAP device (United States Patent 6,745,770)
Fault diagnosis in CPAP and NIPPV devices (United States Patent 6,745,768)
CPAP humidifier having sliding access drawer (United States Patent 6,718,974)
Device for monitoring breathing during sleep and ramped control of CPAP treatment (United States Patent 6,705,315)
Method and device for switching the inspiration or expiration phase during CPAP therapy (United States Patent 6,626,176)
Fault diagnosis in CPAP and NIPPV devices (United States Patent 6,591,834)
Auto CPAP system profile information (United States Patent 6,550,478)
Pressure control in CPAP treatment or assisted respiration (United States Patent 6,526,974)
Administration of CPAP treatment pressure in presence of apnea (United States Patent 6,502,572)
Device and method for nonclinical monitoring of breathing during sleep, control of CPAP treatment and preventing apnea (United States Patent 6,398,739)
Administration of CPAP treatment pressure in presence of APNEA (United States Patent 6,367,474)
Apparatus and method for controlling the administration of CPAP treatment (United States Patent 6,363,933)
Flow estimation and compensation of flow-induced pressure swings in CPAP treatment and assisted respiration (United States Patent 6,332,463)
Process for switching the inspiration or expiration phase during CPAP therapy (United States Patent 6,318,365)
Auto CPAP system profile information (United States Patent 6,286,508)
Control of delivery pressure in CPAP treatment or assisted respiration (United States Patent 6,253,764)
Automated stop/start control in the administration of CPAP treatment (United States Patent 6,240,921)
Estimation of flow and detection of breathing CPAP treatment (United States Patent 6,237,593)
Inspiratory duration in CPAP or assisted respiration treatment (United States Patent 6,213,119)
Pressure control in CPAP treatment or assisted respiration (United States Patent 6,182,657)
CPAP pressure and flow transducer (United States Patent 6,135,106)
Facial masks for assisted respiration or CPAP (United States Patent 6,123,071)
Bilevel CPAP system with waveform control for both IPAP and EPAP (United States Patent 5,865,173)
CPAP nose mask (United States Patent 5,746,201)
Estimation of flow and detection of breathing in CPAP treatment (United States Patent 5,740,795)
Start-up ramp system for CPAP system with multiple ramp shape selection (United States Patent 5,682,878)
Auto CPAP system and method for preventing patient disturbance using airflow profile information (United States Patent 5,645,053)
Facial masks for assisted respiration or CPAP (United States Patent 5,560,354)
Control for CPAP apparatus (United States Patent 5,551,419)
Standby control for CPAP apparatus (United States Patent 5,503,146)
Cardio-respiratory control and monitoring system for determining CPAP pressure for apnea treatment (United States Patent 5,353,788)
Device and method for monitoring breathing during sleep, control of CPAP treatment, and preventing of apnea (United States Patent 5,245,995)
Nasal mask for CPAP having ballooning/moulding seal with wearer's nose and facial contours (United States Patent 5,243,971)
Humidifier for CPAP device (United States Patent 5,231,979)
Device for monitoring breathing during sleep and control of CPAP treatment that is patient controlled (United States Patent 5,199,424)
Device for generating by means of ejector action a continuous positive airway pressure (CPAP) during spontaneous breathing (United States Patent 5,193,532)
Method and apparatus for improving the comfort of CPAP (United States Patent 7,128,069)
Apparatus for controlling the pressure of gas by bubbling through a liquid, such as bubble CPAP (United States Patent 7,077,154)
Device for generating a continuous positive airway pressure (CPAP device) (United States Patent 7,047,968)
Fault diagnosis in CPAP and NIPPV devices (United States Patent 7,040,317)
Flow diverter for controlling the pressure and flow rate in CPAP device (United States Patent 7,036,506)
Carbon dioxide-based Bi-level CPAP control (United States Patent 6,990,980)
Administration of CPAP treatment pressure in presence of apnea (United States Patent 6,988,498)
Auto CPAP system profile information (United States Patent 6,920,877)
Flow diverter for controlling the pressure and flow rate in a CPAP device (United States Patent 6,895,964)
Auto CPAP (United States Patent 6,889,691)
Bubble CPAP cap for neonates (United States Patent 6,889,689)
CPAP humidifier (United States Patent 6,827,340)
Administration of CPAP treatment pressure in presence of apnea (United States Patent 6,817,361)
Flow diverter for controlling the pressure and flow rate in a CPAP device (United States Patent 6,745,770)
Fault diagnosis in CPAP and NIPPV devices (United States Patent 6,745,768)
CPAP humidifier having sliding access drawer (United States Patent 6,718,974)
Device for monitoring breathing during sleep and ramped control of CPAP treatment (United States Patent 6,705,315)
Method and device for switching the inspiration or expiration phase during CPAP therapy (United States Patent 6,626,176)
Fault diagnosis in CPAP and NIPPV devices (United States Patent 6,591,834)
Auto CPAP system profile information (United States Patent 6,550,478)
Pressure control in CPAP treatment or assisted respiration (United States Patent 6,526,974)
Administration of CPAP treatment pressure in presence of apnea (United States Patent 6,502,572)
Device and method for nonclinical monitoring of breathing during sleep, control of CPAP treatment and preventing apnea (United States Patent 6,398,739)
Administration of CPAP treatment pressure in presence of APNEA (United States Patent 6,367,474)
Apparatus and method for controlling the administration of CPAP treatment (United States Patent 6,363,933)
Flow estimation and compensation of flow-induced pressure swings in CPAP treatment and assisted respiration (United States Patent 6,332,463)
Process for switching the inspiration or expiration phase during CPAP therapy (United States Patent 6,318,365)
Auto CPAP system profile information (United States Patent 6,286,508)
Control of delivery pressure in CPAP treatment or assisted respiration (United States Patent 6,253,764)
Automated stop/start control in the administration of CPAP treatment (United States Patent 6,240,921)
Estimation of flow and detection of breathing CPAP treatment (United States Patent 6,237,593)
Inspiratory duration in CPAP or assisted respiration treatment (United States Patent 6,213,119)
Pressure control in CPAP treatment or assisted respiration (United States Patent 6,182,657)
CPAP pressure and flow transducer (United States Patent 6,135,106)
Facial masks for assisted respiration or CPAP (United States Patent 6,123,071)
Bilevel CPAP system with waveform control for both IPAP and EPAP (United States Patent 5,865,173)
CPAP nose mask (United States Patent 5,746,201)
Estimation of flow and detection of breathing in CPAP treatment (United States Patent 5,740,795)
Start-up ramp system for CPAP system with multiple ramp shape selection (United States Patent 5,682,878)
Auto CPAP system and method for preventing patient disturbance using airflow profile information (United States Patent 5,645,053)
Facial masks for assisted respiration or CPAP (United States Patent 5,560,354)
Control for CPAP apparatus (United States Patent 5,551,419)
Standby control for CPAP apparatus (United States Patent 5,503,146)
Cardio-respiratory control and monitoring system for determining CPAP pressure for apnea treatment (United States Patent 5,353,788)
Device and method for monitoring breathing during sleep, control of CPAP treatment, and preventing of apnea (United States Patent 5,245,995)
Nasal mask for CPAP having ballooning/moulding seal with wearer's nose and facial contours (United States Patent 5,243,971)
Humidifier for CPAP device (United States Patent 5,231,979)
Device for monitoring breathing during sleep and control of CPAP treatment that is patient controlled (United States Patent 5,199,424)
Device for generating by means of ejector action a continuous positive airway pressure (CPAP) during spontaneous breathing (United States Patent 5,193,532)
Method and apparatus for improving the comfort of CPAP (United States Patent 7,128,069)
Apparatus for controlling the pressure of gas by bubbling through a liquid, such as bubble CPAP (United States Patent 7,077,154)
Device for generating a continuous positive airway pressure (CPAP device) (United States Patent 7,047,968)
Fault diagnosis in CPAP and NIPPV devices (United States Patent 7,040,317)
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.