Eyvind Boyesen has been granted 29 US patents while listed as an inventor at Performance Industries . The first was granted in 1980 and the most recent in June 2002. Eyvind Boyesen ranks #127,851 of 4,157,543 US inventors in our database (top 3.1%). Patent records list Eyvind Boyesen in Kempton, PA, US.
Patents per Year Patents granted per year, 1980 to 2002 Bar chart with a peak of 5 patents in 1980. peak 5 1980: 5 patents 1980 1981: 1 patents 1983: 4 patents 1983 1984: 2 patents 1985: 2 patents 1985 1986: 1 patents 1987: 1 patents 1987 1989: 3 patents 1990: 3 patents 1990 1993: 3 patents 1994: 2 patents 1994 2002: 2 patents 2002
Issued Patents All Time
Profile Widget
Showing 1–25 of 29 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
6398498 Impeller for water pumps — 2002-06-04
6341627 Glass lined containers — 2002-01-29
5373867 Reed valve mechanism Robert E. Rarick, II 1994-12-20
5368788 Float bowl for carburetors — 1994-11-29
5247912 Reed valve mechanism and method for constructing same Robert E. Rarick, II , Ragnar Boyesen 1993-09-28
5243934 Multiple stage reed valves for use in internal combustion engines — 1993-09-14
5176170 Multiple stage reed valves for use in internal combustion engines — 1993-01-05
4924819 Rotary exhaust control valve for two-stroke cycle engines and process for using the same — 1990-05-15
$483,000
4911115 Slide exhaust control valve for fuel injected two-stroke cycle engines and process for using same — 1990-03-27
$547,000
4909193 Exhaust control valve for fuel injected two-stroke cycle engines and process for using same — 1990-03-20
$538,000
4879976 Reed valve mechanism for engines — 1989-11-14
$544,000
4858991 Chair for infants — 1989-08-22
4829946 Exhaust control valve for two-stroke cycle engines and process for using the same — 1989-05-16
$492,000
4696263 Reed valves for internal combustion engines — 1987-09-29
$964,000
4621706 Motorcycle drive wheel suspension system — 1986-11-11
$729,000
4558761 Motorcycle drive wheel suspension system — 1985-12-17
$1,004,000
4544044 Motorcycle drive wheel suspension system — 1985-10-01
$898,000
4474145 Fuel supply system for internal combustion engine — 1984-10-02
$1,275,000
4463824 Drive wheel suspension system for motorcycle — 1984-08-07
$1,214,000
4408674 Motorcycle drive wheel suspension system — 1983-10-11
4395978 Fuel porting for two-cycle internal combustion engine — 1983-08-02
4389982 Internal combustion engine fuel supply system — 1983-06-28
4388895 Fuel porting for two cycle internal combustion engine — 1983-06-21
4294202 Fuel porting for two cycle internal combustion engine — 1981-10-13
4235206 Two cycle internal combustion engine — 1980-11-25