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For the Inventor, By the Inventor

Wallisellen, Switzerland

Erich Kotthaus

USPTO Granted Patents = 16

Average Co-Inventor Count = 1.2

ph-index = 5

Forward Citations = 85(Granted Patents)


Location History:

  • Wallisellen, CH (1976 - 1989)
  • Huckeswagen, DE (1990 - 1993)

Company Filing History:

goldMedal14 out of 182 
 
Werkzeugmaschinenfabrik Oerlikon-buhrle Ag
 patents
silverMedal1 out of 7 
 
Oerlikon Geartec Ag
 patents
bronzeMedal1 out of 1 
 
Oerlikon-buhrle Ag
 patent

Years Active: 1976-1993

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16 patents (USPTO):Explore Patents
1. 5255475 - Tool for grinding the teeth of bevel gears having longitudinally curved (1993-10-26),
2. 4910922 - Method of grinding the teeth of bevel gears having longitudinally curved (1990-03-27),
3. 4799337 - Method of grinding the teeth of bevel gears having longitudinally curved (1989-01-24),
4. 4664569 - Gear cutting method and machine for cutting spiral bevel gears and (1987-05-12),
5. 4627770 - Gear cutter (1986-12-09),
6. 4611956 - Method for fabricating bevel and hypoid gear pairs (1986-09-16),
7. 4530623 - End cutter head, for gear cutting machines, cutters for end cutter heads (1985-07-23),
8. 4514118 - Method for fabricating gears (1985-04-30),
9. 4353671 - Method for fabricating gears with generated tooth flanks (1982-10-12),
10. 4287686 - Clamping apparatus for clamping cutter blades of a gear cutting machine (1981-09-08),
11. 4224834 - Mating spur gears (1980-09-30),
12. 4211511 - Method of manufacturing pairs of spur gears (1980-07-08),
13. 4183703 - Apparatus for manufacturing pairs of spur gears (1980-01-15),
14. 4183182 - Method for grinding cutting tools and grinding machines for the (1980-01-15),
15. 4090428 - Apparatus for driving the generating or rolling cradle of a gear-cutting (1978-05-23),
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