Inventor

Frederic W. Pollman

Inventor

Eden Prairie, MN, US

Overview

1978–2013

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 38 as inventor

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

F16Hprimary

F16HGearing44%

B60KArrangement or mounting of propulsion units or of transmissions in vehicles12%

A63BApparatus for physical training, gymnastics, swimming, climbing, or fencing8%

B62DMotor vehicles6%

B60WConjoint control of vehicle sub-units of different type or different function4%

F15BSystems acting by means of fluids in general4%

Y02TClimate change mitigation technologies related to transportation4%

Y10TTechnical subjects covered by former us classification4%

B60LPropulsion of electrically-propelled vehicles2%

B65HHandling thin or filamentary material, e.g. sheets, webs, cables2%

PatentTitleYear

8,387,738'Electro-mechanical transmission for compact vehicles'2013 7,717,245'Self-actuating clutch'2010 7,594,868'Split-power transmission with mode shift'2009 7,578,362'Vehicles with dual path hydromechanical transmissions'2009 7,399,233'Golf putter with aiming mark'2008 7,354,368'Method and means for shifting a hydromechanical transmission'2008 7,201,250'Utility vehicle having hydrostatic drive'2007 7,175,537'Golf putter with lift angle'2007 7,156,759'Method for selecting a golf putter'2007 7,093,685'Utility vehicle having hydrostatic drive'2006 7,080,709'Utility vehicle having hydrostatic drive'2006 6,994,180'Utility vehicle having hydrostatic drive'2006 6,988,959'Golf putter'2006 6,966,859'Hydromechanical transmission with differential steer'2005 6,939,261'Compact vehicle transmission'2005 6,932,733'Hydromechanical transmission with differential steer'2005 6,904,997'Compact vehicle transmission'2005 6,860,358'Utility vehicle having hydrostatic drive'2005 6,626,785'Hydromechanical transmission'2003 6,575,872'Method and apparatus for making smooth shifts during mode changes of an HMT when using mechanical clutches'2003 6,533,695'Hydromechanical transmission'2003 6,338,689'Hydromechanical transmission'2002 5,560,203'Transmission control system and method'1996 4,537,364'Constant tension cable reel drive'1985 4,478,041'Hydraulic motor control'1984 4,476,680'Pressure override control'1984 4,462,210'Input torque control for a variable displacement hydraulic transmission'1984 4,426,194'Viscosity compensating circuits'1984 4,419,610'Reversible regenerating electric vehicle drive'1983 4,401,182'Variable displacement hydraulic drive with disconnect'1983 4,399,886'Controls for variable displacement motor and motors'1983 4,352,367'Electro-hydraulic control structure'1982 4,341,131'Hydromechanical transmissions'1982 4,306,467'Hydromechanical transmissions'1981 4,246,806'Multi-mode hydromechanical transmission shift system'1981 4,232,572'Engine-transmission control system'1980 4,111,003'Hydraulic transmission drive assembly with noise attenuation means'1978 4,102,131'Integrated transmission-engine control'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1985Patents assigned to SUNDSTRAND CORP (15)· patent assignee history

1978–1985Based in Ames, IA, US· patent location history

1996–2013Based in Eden Prairie, MN, US· patent location history

2002–2013Patents assigned to SAUER DANFOSS INC (13)· patent assignee history

2005–2007Patents assigned to HYDRO GEAR LTD PARTNERSHIP (5)· patent assignee history

2006–2013Patents assigned to POLLMAN FREDERIC W (5)· patent assignee history

2013Patents assigned to OLINGER MICHAEL A (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SUNDSTRAND CORP	15	1978–1985
SAUER DANFOSS INC	13	2002–2013
HYDRO GEAR LTD PARTNERSHIP	5	2005–2007
POLLMAN FREDERIC Wself	5	2006–2013
OLINGER MICHAEL A	1	2013

Locations

Location	Patents	Span
Eden Prairie, Minnesota, US	23	1996–2013
Ames, IA, US	15	1978–1985