Robert E. Hetrick has been granted 25 US patents while listed as an inventor at Ford . The first was granted in 1981 and the most recent in October 2014. Robert E. Hetrick ranks #158,593 of 4,157,543 US inventors in our database (top 3.8%). Patent records list Robert E. Hetrick in Dearborn Heights, MI, US.
Patents per Year Patents granted per year, 1981 to 2014 Bar chart with a peak of 3 patents in 1981. peak 3 1981: 3 patents 1981 1982: 1 patents 1983: 2 patents 1983 1984: 1 patents 1985: 1 patents 1985 1986: 1 patents 1988: 1 patents 1988 1989: 3 patents 1991: 1 patents 1991 1994: 2 patents 1995: 1 patents 1995 1997: 1 patents 1998: 2 patents 1998 2000: 2 patents 2002: 1 patents 2002 2010: 1 patents 2014: 1 patents 2014
Issued Patents All Time
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Showing 1–25 of 25 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
8857279 Analyte screening and detection systems and methods William P. Hanson , Maureen A. Dyer , Jennifer A. Oberholtzer 2014-10-14
7691602 Agricultural screening system and method for detection of infectious microorganisms William P. Hanson , Maureen A. Dyer , Jennifer A. Oberholtzer , David E. Young 2010-04-06
6404028 Adhesion resistant micromachined structure and coating Xia Zhang 2002-06-11
$80,763,000
6145763 Carbonaceous deposit-resistant coating for fuel injectors Jonathan Edward Fleming , Michael H. Parsons , William Martin Sheeran , Xia Zhang 2000-11-14
$64,792,000
6096149 Method for fabricating adhesion-resistant micromachined devices Xia Zhang 2000-08-01
$33,370,000
5771873 Carbonaceous deposit-resistant coating for engine components Timothy J. Potter , Xia Zhang , William C. Vassell , Michael Raymond Rigley 1998-06-30
$41,334,000
5725151 Electrospray fuel injection Michael H. Parsons 1998-03-10
$42,389,000
5671716 Fuel injection system and strategy Harold Sean Hilbert , Michael H. Parsons , William Francis Stockhausen 1997-09-30
$39,674,000
5389224 Capacitive A/F sensor — 1995-02-14
$20,330,000
5310474 Workfunction based A/F sensor Allen L. Schamp 1994-05-10
$17,141,000
5275712 Wide range workfunction based A/F sensor Allen L. Schamp 1994-01-04
$19,009,000
5000050 Mass-flow sensor using aerodynamic damping — 1991-03-19
$13,335,000
4887032 Resonant vibrating structure with electrically driven wire coil and vibration sensor — 1989-12-12
$17,248,000
4841934 Oxygen pumping device for control of the air fuel ratio Eleftherios M. Logothetis , Richard E. Soltis , William C. Vassell 1989-06-27
$13,555,000
4806859 Resonant vibrating structures with driving sensing means for noncontacting position and pick up sensing — 1989-02-21
$9,671,000
4739664 Absolute fluid pressure sensor — 1988-04-26
$31,670,000
4615772 Electrochemical gas sensor — 1986-10-07
$9,016,000
4544470 Electrochemical photocatalytic structure — 1985-10-01
$6,572,000
4435742 Electrochemical transistor structure with two spaced electrochemical cells — 1984-03-06
$7,002,000
4396466 Absolute pressure sensor William A. Fate 1983-08-02
$8,978,000
4381224 Step function lean burn oxygen sensor William A. Fate 1983-04-26
$20,638,000
4332003 Electrochemical analog transistor structure with two spaced solid electrochemical cells — 1982-05-25
$4,417,000
4272329 Steady state mode oxygen sensor and method William A. Fate 1981-06-09
$3,081,000
4272330 Transient mode oxygen sensor and method — 1981-06-09
$3,081,000
4272331 Oscillatory mode oxygen sensor and method — 1981-06-09
$3,081,000
