Inventor

Ray S. McDonald

Inventor

St. Paul, MN, US

Overview

1980–2000

Patent span

Human necessities

Primary field (CPC A)

Patents· 23 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

A61Nprimary

A61NElectrotherapy76%

A61MDevices for introducing media into, or onto, the body12%

G01RMeasuring electric variables4%

G06FElectric digital data processing4%

LOC254%

PatentTitleYear

D0434156'Gazebo'2000 5,351,696'Method and apparatus for intracardiac electrogram morphologic analysis'1994 5,171,228'Apparatus for medical instrument placement verification'1992 5,009,644'Needle placement verifier'1991 5,006,115'Needle placement sensor'1991 4,515,159'Digital cardiac pacemaker with rate limit means'1985 4,421,114'Tachycardia treatment'1983 4,401,120'Digital cardiac pacemaker with program acceptance indicator'1983 4,340,062'Body stimulator having selectable stimulation energy levels'1982 4,337,777'Rate limited pacer'1982 4,324,252'Memory control circuitry for implantable medical devices'1982 4,276,883'Battery monitor for digital cardiac pacemaker'1981 4,275,738'Digital cardiac pacemaker clocking means'1981 4,273,132'Digital cardiac pacemaker with threshold margin check'1981 4,273,133'Programmable digital cardiac pacemaker with means to override effects of reed switch closure'1981 4,267,843'Means to inhibit a digital cardiac pacemaker'1981 4,263,915'Digital cardiac pacemaker with hysteresis'1981 4,257,423'Medical device'1981 4,253,466'Temporary and permanent programmable digital cardiac pacemaker'1981 4,241,736'Reset means for programmable digital cardiac pacemaker'1980 4,236,522'Asynchronous/demand made programmable digital cardiac pacemaker'1980 4,233,985'Multi-mode programmable digital cardiac pacemaker'1980 4,230,120'Energy compensation means for digital cardiac pacemaker'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980–1994Patents assigned to MEDTRONIC INC (21)· patent assignee history

1980–1992Based in St. Paul, MN, US· patent location history

1983Patents assigned to BERKOVITS BAROUH V (1)· patent assignee history

1983Patents assigned to MCDONALD RAY S (1)· patent assignee history

1994Based in Roseville, MN, US· patent location history

2000Patents assigned to MCDONALD RAY (1)· patent assignee history

2000Based in Ontario, CA· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MEDTRONIC INC	21	1980–1994
BERKOVITS BAROUH V	1	1983
MCDONALD RAYself	1	2000
MCDONALD RAY Sself	1	1983

Locations

Location	Patents	Span
St. Paul, Minnesota, US	21	1980–1992
Ontario, CA	1	2000
Roseville, Minnesota, US	1	1994