Inventor

Ronald K. Maxwell

Inventor

Irving, TX, US

Overview

10→

Patents

1978–2008

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 10 as inventor

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

F16Kprimary

F16KValves26%

H04LTransmission of digital information, e.g. telegraphic communication16%

F16JPistons11%

H04MTelephonic communication11%

Y02DClimate change mitigation technologies in information and communication technologies [ict], i.e. information and communication technologies aiming at the reduction of their own energy use11%

Y10TTechnical subjects covered by former us classification11%

F01DNon-positive displacement machines or engines, e.g. steam turbines5%

F23LSupplying air or non-combustible liquids or gases to combustion apparatus in general5%

G06FElectric digital data processing5%

PatentTitleYear

7,413,163'Rack and pinion wheel drive for an industrial sliding blade damper'2008 6,123,319'Damper valve having an adjustable seat'2000 5,494,257'Damper valve having an adjustable seat'1996 4,924,456'High speed modem'1990 4,821,771'Diverter valve with bellows seal'1989 4,771,417'High speed modem'1988 4,749,168'Damper plate sealing mechanism'1988 4,215,243'Automatic modem identification system'1980 4,125,872'Multiline automatic calling system adapter'1978 4,101,833'Duplex data transmission modem utilizing an injected tone for shifting power within the transmit spectrum'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1980Patents assigned to RACAL VADIC INC (2)· patent assignee history

1978–1990Based in Palo Alto, CA, US· patent location history

1988–1989Patents assigned to PATHWAY BELLOWS INC (2)· patent assignee history

1988–1990Patents assigned to RACAL DATA COMMUNICATIONS INC (2)· patent assignee history

1988–2008Based in Irving, TX, US· patent location history

1996–2000Patents assigned to PRECISION ENGINEERED PRODUCTS (2)· patent assignee history

2008Patents assigned to SENIOR INVEST AG (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
PATHWAY BELLOWS INC	2	1988–1989
PRECISION ENGINEERED PRODUCTS	2	1996–2000
RACAL DATA COMMUNICATIONS INC	2	1988–1990
RACAL VADIC INC	2	1978–1980
SENIOR INVEST AG	1	2008

Locations

Location	Patents	Span
Irving, Texas, US	5	1988–2008
Palo Alto, California, US	5	1978–1990