IMDBWikipedia
CLT results:
"Richard LeParmentier" is credited in the following 34 titles (104 profiles)
"Richard Parmentier" is credited in the following 23 titles (157 profiles)
"Richard Le Parmentier" is credited in the following 19 titles (75 profiles)
"Rick Le Parmentier" is credited in the following 3 titles (6 profiles)
According to the CLT results, "Richard LeParmentier" is the common name, but looking at the titles listed, several are actually invalid. Between the three names, there are many overlaps. I've put an asterisk next to titles that overlap in the CLT results.
Richard LeParmentier - 0 confirmed
UnconfirmedShine On Harvey Moon: Season 1, Episode 1
Stardust (1974)*
We'll Meet Again
Invalid:Lillie, Episode 9
Octopussy
The People That Time Forgot
Reilly: Ace of Spies, Ep 10
Rollerball (1975)
Silver Dream Racer
Space: 1999: Season 2, Ep 21
Star Wars: Episode IV: A New Hope
Who Framed Roger Rabbit
Richard Parmentier - 8 confirmedConfirmed:Hammer House of Mystery and Suspense: Paint Me a Murder (confirmed by me)
Lillie, Episode 9 (confirmed by me)
Octopussy (confirmed by me)
The People That Time Forgot (confirmed by me)
Reilly: Ace of Spies, Ep 10 (confirmed by me)
Return of the Saint, Ep 11 (confirmed by me)
Silver Dream Racer (confirmed by me)
Superman II (confirmed by me)
Unconfirmed:Hazell: Series 2, Ep 10
Master of the Game
The Professionals: Series 3, Ep 4
Richard Le Parmentier - 3 confirmedConfirmed:Space: 1999: Season 2, Ep 21 (confirmed by me)
Star Wars: Episode IV: A New Hope (confirmed by me)
Who Framed Roger Rabbit (confirmed by me)
Unconfirmed:Capital City: Series 1
Capital City: Series 2
Invalid:Rollerball (1975)
Rick Le Parmentier - 1 confirmedConfirmedRollerball (1975) (confirmed by me)
Unconfirmed:Stardust (1974)*
Thanks to Amazon instant streaming, Netflix, and Youtube, I've been able to get quite a few more confirmed. Unless I missed a few titles, it doesn't look like any other name will be able to catch up.
Richard Parmentier appears to be the current winner.