DB

Donald D. Bartholomew

PT Proprietary Technology: 99 patents #1 of 1Top 100%
📍 Marine City, MI: #1 of 44 inventorsTop 3%
🗺 Michigan: #215 of 86,293 inventorsTop 1%
Overall (All Time): #13,249 of 4,157,543Top 1%
105
Patents All Time

Issued Patents All Time

Showing 76–100 of 105 patents

Patent #TitleCo-InventorsDate
4919403 Serpentine strip spring 1990-04-24
4915136 Stuffer plug quick connector assembly 1990-04-10
4897906 Method of making a fluid pressure surge damper for a fluid system 1990-02-06
4895124 Fuel and electrical distribution system for fuel injected engines 1990-01-23
4893845 Firewall heater line adapter 1990-01-16
4859194 Spark plug connector 1989-08-22
4852239 Method of affixing a ring to plastic pipe 1989-08-01
4843686 Hose clamp 1989-07-04
4823844 Fluid pressure surge damper for a fluid system 1989-04-25
4807913 Heat blocking junction 1989-02-28
4805467 Force recording seat belt assembly 1989-02-21
4804020 Conduit liner assembly and method for installation 1989-02-14
4802697 Means of locking tubes into engagement with a pressure fitting 1989-02-07
4778203 Swivelable quick connector for high temperature connection 1988-10-18
4730652 Automotive fuel filler system 1988-03-15
4683917 Flexible pressure-confining conduit assembly 1987-08-04
4681351 Swivelable quick connector assembly 1987-07-21
4677861 Force recording seat belt assembly 1987-07-07
4669757 High pressure fluid conduit assembly 1987-06-02
4610284 Automotive fuel filler system 1986-09-09
4601497 Swivelable quick connector assembly 1986-07-22
4583650 Manually releasable drainport closure apparatus 1986-04-22
4541658 Swivelable quick connector assembly 1985-09-17
4526411 Swivelable quick connector assembly 1985-07-02
4524995 Swivelable quick connector assembly 1985-06-25