EH

Ernest G. Hoffman

HI Hubbell Incorporated: 25 patents #34 of 1,172Top 3%
HH Harvey Hubbell: 8 patents #3 of 65Top 5%
📍 Middlefield, CT: #2 of 49 inventorsTop 5%
🗺 Connecticut: #918 of 34,797 inventorsTop 3%
Overall (All Time): #104,193 of 4,157,543Top 3%
34
Patents All Time

Issued Patents All Time

Showing 1–25 of 34 patents

Patent #TitleCo-InventorsDate
5562483 Electrical wiring device with conduit clamping mechanism 1996-10-08
5478250 Electrical connector assembly, especially for electric vehicle 1995-12-26
5448027 Safety switched outlet with dead front William C. Boteler, John J. Dennison 1995-09-05
5413493 Electrical connector assembly, especially for electric vehicle 1995-05-09
D356543 Dead front electrical connector for recharging electric vehicles 1995-03-21
5385480 Electrical connector inlet assembly with break-away mechanism for electric vehicle 1995-01-31
5354213 Adjustable electrical cord clamp 1994-10-11
5346406 Electrical cable and connector assembly with safety pilot line disconnect, especially for electric vehicle Alfred L. Ehrenfels 1994-09-13
D350332 Dead front electrical connector for charging electric cars 1994-09-06
5344330 Electrical connector assembly, especially for electric vehicle 1994-09-06
5344331 Electrical connector system, especially for electric vehicles John C. Anthony 1994-09-06
D350331 Dead front electrical connector for recharging electric vehicles Jerome E. Zimmermann 1994-09-06
D349276 Dead front electrical connector for recharging electric vehicles Alfred L. Ehrenfels 1994-08-02
5328387 Lockable cover for electrical connector 1994-07-12
D348430 Dead front electrical connector for recharging electric vehicles Jerome E. Zimmermann 1994-07-05
D348431 Dead front electrical connector for recharging electric vehicles Jerome E. Zimmermann 1994-07-05
5324897 Switch locking device Aaron D. Melgoza, John L. Sandor 1994-06-28
5306999 Electric vehicle charging station 1994-04-26
5304075 Cable clamp with stress distributing grip 1994-04-19
5243157 Lockable handle 1993-09-07
5108297 Positive locking electrical plug with shielded blade protection David H. Romatzick, Jr. 1992-04-28
5046961 Positive locking electrical plug 1991-09-10
4743711 Cable having hauling, electrical and hydraulic lines and elongated tensile elements 1988-05-10
4740658 Pushing and pulling cable David H. Neuroth 1988-04-26
4719316 Splice for pushing and pulling cable David H. Neuroth, Fernando Tabak 1988-01-12